My kids are in a batman phase, so I made them these.
I cut out the batman emblem on freezer paper, ironed it on, painted it in with watered down bleach and a simple brush, let it for a little bit and rinsed it.
worked really well!

I especially like the way the bleach makes the emblem a bit subtle, not all to bright like it wouldve bee with yellow spray paint. The bleach didn't bleed at the lines, but yet it has more of a natural fade than a straight cut sillouette line.
Gives it a bit of an old vintage look as well.

Im gonna make myself one too ;-)