I'm working on a font like this, but I want to know if this font exists yet

Try with this 2 fonts:

http://www.myfonts.com/fonts/k-type/designer-block/regular/
http://www.myfonts.com/fonts/itc/tetra-itc/bold/

Anyway, I'm launching a font like hummel logo. It'll be available on dafont soon.