Some rarities on ebay today. Starting with a Nanoloop cart
1.3 for Gameboy.
And as if that wasn’t enough, a Nanoloop 1.5 cart as well.
The a casio VL-5 which appears to have a few problems which is probably why it is going cheap.
The a Zoom PS-04.
A Yamaha SU10.
And an iRig which seems quite cheap.