Unfortunately, as Frodo escaped he dropped the Ring onto a
passing raft manned by an elf and a dwarf headed out into the ocean sailing west. (the dwarf seeming to poll mightily with his two strong arms
as he muttered to the elf):
"Never trust a Ranger!"

Fortunately . . .
 

. . . Frodo jumped into the raft, and after explaining that he wasn't a Ranger, got the Ring back.

Unfortunately...
 

Meanwhile they had sailed a considerable distance from the shore, so Frodo found himself trapped on that small raft along with the Elf and the grumpy Dwarf.

Fortunately, Ulmo saw what was going on and blew the raft back to shore.

Unfortunately Ulmo was so bamfoozled at seeing an elf, a dwarf,
and a hobbit traveling together that he blew the raft the wrong
way and it ended up beached on the shore of Aman, where an
uncle of Frodo's seemed inordinately happy to see them. (Causing
Legolas to whisper an aside to Gimli, "Why is he so happy to
see us that he's calling us, 'His Precious' ")?

Fortunately Gandalf was able to take Frodo back to Middle-Earth with him so he could destroy the Ring.

Unfortunately Gimli, Legolas, and Bilbo also went back to Middle-earth with Gandalf to stop Frodo from destroying their precious, and they managed to
enlist Merry, Pippin, and Sam in a successful plan to save the Ring from destruction. (getting it while Gandalf and Frodo were sleeping off celebratory drinks at The Prancing Pony). But they quarreled over who would get the ring so
Cirdan talked them into his taking them back to Aman, whereupon, after they safely arrived, Manwe was asked to decide who would get the Ring (after he did agree to an A.B.F. proviso- Anybody But Frodo).

Fortunately, Manwe decided Gandalf should take the ring (with Frodo close by), and so he sent his swiftest Eagles with the ring in an envelope to Old Gand, who was still asleep in Bree.

Unfortunately Frodo was awake and ran off with the Ring.

Fortunately one of Manwe's Eagles, who had stayed behind because he was sick with indigestion, saw Frodo and decided to raise the alarm.

Unfortunately he was still sick with indigestion and so flew very slowly, by which time Frodo had got himself stuck down a conveniently placed hole and so the eagles couldn't see him.

Fortunately, Frodo used an unusual spurt of strength and threw the ring towards Mount Doom.

Unfortunately, the Ring got hooked on the antlers of a passing moose.

Fortunately, the moose was actually Manwe in disguise.

Unfortunately, he looked into the sun. Now blinded, he stumbled into a ravine.

Fortunately, his antlers got caught on the side of the ravine, and he was able to pull himself back up.

Unfortunately, during all the struggling, the Ring fell into the ravine without the moose.

Fortunately Manwe turned himself into human form and climbed down the ravine and recovered the Ring.

Unfortunately, as soon as Manwe touched the Ring, it started to tempt him with beautiful visions of reigning supreme over Middle Earth and Valinor and getting the rest of the Valar, not to mention the pesky Elves and Wizards out of his way for good.

Fortunately Varda turned up and exercised a wife's privilege to swipe any jewellery in her husband's possession ;)

Unfortunately, (for Varda), Manwe had filed for a divorce meaning Varda lost all her jewel swiping priveledges.

Fortunately, she'd already taken it.

And unfortunately for Manwe he hadn't read the small print in the pre-nup which meant she got the jewellery and his car and golf clubs (just to annoy him) as well as continuing right to reside at Taniquetil... :D

Fortunately . . .
 

. . . Frodo, using a combination of puppy-dog eyes and flattering words, recovers the Ring from Varda.

Unfortunately, Frodo was so exhausted by his exhibition of cuteness, that he had to rest for a while and he soon fell asleep, not noticing the shadow that was creeping steadily towards him, his eyes fixed on the Ring.

Fortunately . . .
 

. . . the figure (who was later known to be Tulkas) stumbles upon a twig. Frodo hears him, and tries to run away with the Ring.

Unfortunately, the Ring, perceiveing Tulkas' majestic appearance and greater wit, seeks to sabotage the inferior Halfling's attempts to escape by becoming a terrible burden to him, thus slowing him down considerably.

Fortunately majesty is a very heavy thing to be clad in (all that gold, you know) and that slowed Tulkas down to a mere noble stride, so Frodo got away any how.

Unfortunately Frodo ran right into Gandalf. (It's unfortunate because unbeknowest to Frodo it was actually Saruman disguised as Gandalf).

Fortunately Frodo was running quite fast and given the height difference, Saruman was too distracted by pain to make a grab for the ring ...... :p

Unfortunately Grima was around and grabbed the little bugger (meaning Frodo).

Unfortunately he had just been doing Saruman's laundry (getting his whites really bright) and Frodo slipped through his slimy and soapy mitts

Unfortunately Ugluk saw this and was hungry.

Fortunately, there was a buffet table near by and he went there instead.

Unfortunately the buffet was all macrobiotic and vegan which didn't satisfy Ugluk's nutritional requirements....

Fortunately (for Frodo), Ugluk remembered he was on a diet anyway, and he needed to stay off fats, and Frodo being just that, he decided after an inner struggle to leave him alone and went to look for something less heavy on the stomach, though casting several wistful glances back.

Unfortunately, an Ent, who was trying to wreck Isenguard, kicked Frodo sky high and he sailed towards the river! :eek:

Fortunately, he landed in a boat that just happened to be drifting in the middle of the river

Unfortunately, the boat was drifting straight toward Rauros Falls.

Fortunately, the boat collided with Dead Boromir's boat; Dead Boromir sat up and said, "Hey! This is my waterfall! Get your own!" and pushed Frodo's boat off towards the shore.