How did he do it?

First there was the redecoration of the room. Then there was the disassembly of the dollhouse. Then, following today's adventures in not-napping, we discover this:

Notice the new gold knob on the lower drawer. So, where exactly did he acquire the new knob?

And where did he put the old knob?

But here's the thing. How did he do it this time? There was no screwdriver in the room!

We obviously need to get this boy some kind of outlet! We're thinking erector set maybe?