Standing on a tower, world at your command.

• Position: WHAT'S NEW? - Fisher-Price's toys - Brief article

One of the most basic of infant and toddler toys is building blocks. We've yet to meet a child who could resist knocking down any tower within view. It's amazing to watch them persist until they finally are able to stack their own creation and then squeal in delight when they send it crashing to the ground.

With a tweak on this concept comes Peek-A-Blocks from Fisher-Price, East Aurora, N.Y., which have added a whole new world of discovery by showcasing what's inside the blocks. The Bucket O'Builders ($19.99) is a collection of 15 animal-themed builder blocks in various sizes and shapes, including rectangles and cylinders. Each brightly-colored piece offers a new surprise with a different character and busy activity--some shake, others spin--and all have bumpy building surfaces on top and bottom, allowing them to "stick and stack" easily. The blocks store in a roomy, see-through bucket with a handle and the lid doubles as a...