An off-beat diversion from radio when the bands are crook is to get a bit of consumer electronics and see if you can make some odd sounds from it.
One can make an amplifier into an oscillator by adding some positive feedback. Even a pair of sweaty hands can do it. Of course for safety's sake one should only do this with battery powered gear.
Another thing you can do is get an electronic toy and connect resistors and capacitors across various parts of the circuit. You'll get some interesting sound effects. Especially if you add variable resistors, light dependent resistors and more.
Anyway here's a few videos on circuit bending I've done.
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