[sdiy] DIY Analogue Drum Machines???

[Jesse Yoder]

This may be a silly question, but I've been wondering lately if it is
practical to build a DIY drum machine.  It seems like at the least a
fun idea to mess around with.  However, I'm kinda new to the whole
synth thing, so I dunno.  Hope I'm not straying OT with this question.
 It seems to me that an analogue drum machine is basically a synth of
sorts, so ...

I'm curious.  Are there any circuits out there?  Has anyone toyed with
the idea?  Has anyone built one/tried to, etc.

Curious in NC,
~~Ponyboy