Need recommendation for hobby laser...

I'm looking for an introductory laser that can char wood. I'm not wanting a cutter, or something that can burn through wood, just something I can used to make patterns (by hand-ish) on Baltic Birch plywood.

Is there's a smaller, inexpensive laser out there that is capable of this?

My idea is to use a series of low rpm motors to spin wood while I use another motor to slowly move the laser. I assume this could make some really cool patterns in a wood surface? But I'm on not able to do much in terms of electrical things as I'm unable to use my left arm/leg (and not having 2 hands has been a disaster for my electrical projects in the past.

Thanks a bunch!