I built one of these a couple weeks back and the first version I did was just 2 deformed basket screens press fit - https://imgur.com/a/x5F0LoZ it worked well enough but it seemed unsafe (I shook it each time before use just for general safety)

Had an idea for a safer DIY variant stuck in my head I had to finally see it through - https://imgur.com/a/3Wmquav the ballcap lol.

1/8in x 1in stainless fender washer
#6-32 stainless course nut
#6-32 x 2in stainless machine screw

also a sporty one where I used arbor press to form 1in screens, nice and clean - https://imgur.com/a/rBdFrXI seems fairly safe

bonus earlier cheaper glass variant - https://imgur.com/a/dPYS4Bx

double bonus - DIY injector bowl - https://imgur.com/a/wHTPv6g https://imgur.com/a/h9uvBll

1 3/4in legth, 18mm hole on one end, 20mm hole on the other.

1/25in screen, press formed 19mm wide

cut a 19/22 male glass piece down 1.5in, use an A112 o ring (1/2in x 11/16 x 3/32)