I rather like entings since Tolkien so loved his trees and Tree and Leaf is such a wonderful metaphor for his life and work that it seems "very right and proper".
However I remember overhearing at Oxonmoot 06 a mother saying that she had wanted to make her (absolutely cherubic looking son) a "Pippin in the livery if gondor costume" but had been too busy at which the elven fair moppet had scowled and said "I wanna be an orc". But a bit dangerous to suggest other peoples children are orclings....
but then since they are commonly referred to as baby goats maybe it shouldn't be...