Guitar amp tilt stand - easy as Lincoln Logs - small, portable, simple, stable, cheap or free.

Step 3 More stable design?

I didn't actually build this, I just doctored the photo. This should produce a very stable stand with no side to side tilting. Notice that with the amp sitting on the stand, it's impossible for the slats to come out.
Just so you know, I flunked woodshop in Jr. High 'cause I don't like sanding.