pcwiz
Veteran
You could just sand the old adhesive (the left behind sticky stuff) from the stickers off. I just take off all the stickers, keep the cube assemble,d and rub steel wool all over the pieces. It's very effective, it does a good job in removing the old adhesive, it leaves all the pieces SUPER smooth, and it only sands off a tiny bit. Then I just disassemble the pieces, and remove the "cube dust" that comes from the sanding.