We just finished a renovation of our house putting in quartz counters (in the picture too hah).
So my brother and I made a squat rack out of excess 2x4s using a guide here http://homemadestrength.blogspot.com/2011/04/more-than-just-squat-stands.html
Haven't tested it but they are very stable (plus i can't squat amounts that would put much stress on it).
Was a day project, incredibly simple and cheap too (but we had a lot of the stuff already like the wood, screws etc, just had to get buckets and concrete). It was kind of fun to make, and the first time ive used concrete
"All beings tremble before violence. All fear death. All love life. See yourself in others. Then whom can you hurt? What harm can you do?"