Needed a blue microphone flag for an upcoming conference, so I designed one. It features 5 sides which are 50mm square each, and a 36mm hole for the mic to fit through. Just add some foam, and logo stickers and call it done!
Designed to be printed without support material, and will fit the Popular Nady 151 Wireless Mic with no issues. Any other 35mm mic or smaller will work as well. Just cut the hole in your inner foam to keep it snug.
Will fit a 1.75"x1.75" logo sticker great, and a 2"x2" will work fine as well with a little overlap.
EDIT: I added a bottom to print. This helps hold the foam in and tidies things up a bit. Just use acetone or Testors Red model glue to permanently seal the pieces together.
Print with a .35mm layer height, 3 solid layers, and 4 premiters.
I kept all my speeds around 100mm/sec on a Lulzbot AO-100.
When printed. fill inside with a piece of 2" thick black cushion foam with a center hole cut out roughly 2/3rds the diameter of your microphone.
Use 1.75" logo stickers to add your logo to each of the six sides.