The Famicom History mouse and Superscope set, the coins are from the Pokemon gashapon slot machines, couple of other palisades accessories and the record player is "The world's smallest turntable" I clipped off the keychain bit. The record turns if you move the arm, the lid closes and the record comes off. Not a lot of good modern record players for figures and these cost about six bucks.
The Famicom history set can be hit or miss for scale but overall it works. The only truly oversized thing I have seen so far is the Superscope but it looks badass as a weapon for 1/12th.