A simple, generic wall plug (aka expansion plug) I made from scratch. It's fairly lowpoly (although I made it hollow so relatively lots of faces for the small, simple object it is), and has a subsurf modifier which I didn't apply so you can still tweak the lowpoly mesh if you like.
Maybe not the most perfect mesh out there, but it serves its purpose I think. Still learning a lot, so please comment for suggestions and improvements.
Who knows... maybe someone will want to add a lot of details to his Cycles house... ! I think this model is a great exercice for learning Blender... I will try it ;)