Quoted from Pinballlew:Wowzers nice collection, never even seen some of those. My kids like the classic and they are also interested in these ball puzzles.
Those ball puzzles are a blast to play with, and really good for kids' development too. We now have three of them (one being the model you pictured).
Of course, you know someone would take the concept to its logical conclusion, and here it is at Hammacher-Schlemmer for the low, low price of only $50000: