I have an old big bin of at least 20,000 legosLego and Lego-like pieces. I never kept the boxes or the instructions when I was finished building sets and I have legosLego pieces from at least 50 different sets, plus other non lego-Lego brand bricks of various types. I could sort it out, but that would take an extraordinarily long time. I want to know if they have any play value left; if I can still use them as legosLego without any instructions or boxes, and no memory of what half of the sets that went into it were. Do these legospieces have any play value, since they are random pieces with no way to reassemble the original sets?