Mr Yuk symbol on it, plus a few others for good measure that were just smelly, bubbly, or foamy. I was sure I had finally come with something amazing when I stained the carpet in my room beyond repair with my blue paint-like substance.
Logically, I buried my secret stuff in backyard for safe-keeping, and made a map with a secret key to find it later. I put the maps in my journal, which I kept in my secretest place, a small bookshelf with a false wall.
Original Artist's Conception
Notice the reverse type in the final digital product. That's my secret notation for the proportions to re-activate my secret stuff.
Final digital product