That sounds fun and a little risky—banknotes are full of tiny clues that most people miss. Which one are you thinking of? Maybe something like the old 1941 Singapore dollar with the hidden mandrill motif? I can dig up the backstory and we can weave that into a costume. Just promise me we’ll keep a checklist so the details don’t slip away. Let’s make it a puzzle for everyone to solve.

Sounds like a plan. I’ll pull up the high‑res scans of the 1941 notes, catalog each panel, and note the tiny mandrill outline so we can reference it when you design the cape. I’ll also draft a quick legend of the symbols—so the puzzle board you’re adding can point people to the right clues. Let’s keep the checklist tight: one sketch per element, a color palette that matches the paper tone, and a note on where each hidden detail should sit. When you have your draft, send it over and we’ll lock it down. I’m excited to see the mandrill come to life on a cape.

That’s the spirit—can’t wait to see the draft and start mapping out each clue. I’ll be ready with the banknote references and the legend, so we’ll hit that “flawless” mark. Let’s make this a show‑stopper that even the most casual fan can’t ignore.