I've just randomly noticed that the last level of Sports in Lemmings 2, Level 10, "Take up Archery", contains a shuttlecock (at the top of the level, like from a game of badminton):
https://tle.vaarties.nl/lemmings2/solutions/amiga/sports/1/10/(scroll to the bottom of the page)
I'm pretty sure I've never seen that as a terrain piece anywhere else, including NeoLemmix. Why is it not included? Was it not possible to rip the sprite from the original L2 game?
Or is the shuttlecock just a structure built out of smaller, combined pieces, and I just can't see it?