Well used member
Mine are the Amazon ones as shown. Been using one of them for a year now. No staining at all and certainly 'funkless'.My dog bowl (black) has finally arrived the other day. Wow, it's a cheat!
It stains easily with soap residue though. And I'm curious if there ever will develop a funky smell (appears to be absent as of now).
But currently, it's a very interesting tool.
Thanks for the tip!