The nachgekauften pin I empty since after use and now holds perfectly still, despite high (!) Stress by now 3 children. The tip is not crushed or frayed, although the small children of course it is always neat and sometimes press the pin cut literally on the backing (points).
Even my 8 year old son now takes the Aquadoodle now and again in the summer and found it amusing funny. Now I have just bought a second doodle for my 2 year old niece.