Thanks for the comments. I've just been trying to put some order in a world of chaos
. I like the aesthetic side of twisty puzzles and I find using the same stickers gives an overall harmony to the collection. It's also as if each puzzle has it's importance in the collection, none get left behind.
The 2x2x3 is the Gentosha Tower Cube. Hopefully I'll be soon adding the 2x3x3 and the 2x2x4 to that group. I've also ordered a 1x2x3 from Beddard puzzles and I might make a 2x2x2 with regular size cubies to push that group further. A shame the cube4you 3x3x5 isn't with regular size cubies