I have spent a bunch of time today looking for this discontinued Brainstring R puzzle. Wondering if there might be sites selling a used one? Tried EBay, Etsy, Amazon. Posting here to
Brainstring 'R' – Questacon
Brainstring”R” Puzzle – PuzzleManiac
Brainstring R Brainteaser Puzzle | #1832571300
Brainstring “R” - Recent Toys
Brainstring Original | Puzzle Games | Puzzle Master Inc
🆕3 Brainstring Original 🔥 R 🔥 & Advanced 🔥Brainteaser Knot By Recent Toys 🎁 | eBay