EDIT: If you don't have any other hardware than wires, check out my other AA battery holder:) Thanks for all the support! 

Kids broke their toy drill, so we disassembled it and extracted switch and motor, but needed a simple 2x AA battery holder.

The metal parts came from the toy, so you'd also need to source them somehow:) (or buy).

The batteries are quite loose, so there is a risk they could fall out with wilder movement, but I wanted to avoid any fighting when pulling them out:).