What Mods Can I Do?

[cuberkid10]

I have a odd mix of parts and I'm wondering what I can make from them. I don't want 1x1's or easy things like that. 1x2, 1x3 etc.
I have:

3 keychain cube cores
5-7 truncated corners (Keychain)
3 truncated edges (Keychain)
1 edge (Keychain)
4 corners (Keychain)
1 Regular 3x3 (Rubik's Brand)
1 4x4 (Rubik's Brand)
1 magic tile
5 magic strings

Please don't suggest octagon barrel or extended cube. And I don't have a saw or a dremmel. Just sandpaper, filler, stickers, and superglue.

Thanks!