Hitsuji: Shears Of Fury by Jamul
Doesn't use construction as a gameplay theme -- only a cosmetic! -- and the concept is not great especially considering that. But it's still very fun to play with, and in keeping with the polish has a rather large play-value considering the dev-time (I probably spent more time messing with this game than any of the one's of seen so far).
Experienced no bugs during playtime, which doesn't mean there weren't any but is still a good indication that the technical side of this was also well attended. The game performs no genius technical feats, but is not childs-play in that respect either, and definitely gets my respect for what it does.