Yes, I do - sitting in storage unused. It seems a pity :/ I'd forgotten about this thread myself until tonight when I googled 'keyence mad-tune' and found my own posting. It really is a lovely piece of miniaturization!

Edit: I carefully disassembled it last year and replaced the battery with a brand-new N-50AAA cell (I'm an electronics engineer, BTW). It's running perfectly now though the thing spins up so fast it doesn't keep traction :)

Keyence Mad Tune
 

I just got one, very very cool, I love Keyence, I have 5 desk runners also

Test post.

Continued test