The watertoys that you are trying to find are called Waterfuls. I had lots of them, they were awesome! Here's my crack at a description: Waterfuls were plastic handheld water filled toys by Tomy. They came in various shapes and sizes, typically smaller cylinders and larger rectangles. The basic was a ball catch, but themes ranged from sports - basketball, soccer, ring toss, fishing and many more. They were filled with water through the top. The player squeezed a button, forcing air through the water. This made a wave/bubble to create the action, moving small plastic pieces- balls, fish, etc. trying to get them where they needed to land.
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