A: I think the larger blocks make neat themed decor items... I've also seen smaller blocks modified with velcro to create handles for blending tools. Here are some more ideas from the forums:
-- make handles for sanding blocks or scrubbing pads
-- make building blocks for kids
-- decorate them with letters for Scrabble-type tiles
-- mount photos on them
-- make texture stamps or tools for gel printing or backgrounds using found objects
You can find (or share!) even more ideas in the forum
here,
here, and
here!