Any fun utilities that doesnt serve much purpose for things other than amusement? I can think of things like a oscioloscope

Oo anything that runs in the system tray? I seem to have lots of room there.

Also.. I was searching (random ideas) and I found this http://xetranet.free.fr/spv/thermo/ its for smartphone only but I was thinking that might be a fun thing to have.

  

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