Winners in Canada have a Houdini puzzle padlock for under $13 CDN + Tax (clearance, about 50% off list price). Cool looking lock (metal?) with keys. It's some type of puzzle, & padlock is large. Bayers Lake in Halifax had 2 on the shelves before check out.
https://www.amazon.ca/Professor-Puzzle-Houdini-Lock-Hearts/dp/B00Y3R7P0O/ref=sr_1_1