i dont make complex stuff and dont have actual equipment besides a shitty drill and some bits. but my job lets me make shit out of plywood scraps and occasionally they have maple and hickory bits in the scrap bin. i started experimenting with subwoofer boxes for a 65" subwoofer, just playing with volume and port sizes. i then turned one into a cajon, since it was too large for the little woofer. used back wire from work for the snare, and since it was already tuned for low frequencies, it slams like a kickdrum. i have been making a bunch of these smaller bongo/congas playing with ports. im not professional player by any means but i can teach the basics to my kids and they follow. i also made a small diner dollhouse, it was a hit.