Somebody? Anybody?

Small book shelf? Plant stand? Something that puts a bit of "distance" between the unit and the "hands" would do well.

You could also invest in a cord protector. Ikea sells them...it is a tube that collects all the wires and keeps then bundled/out of the way. I personally would put some sort of small shelving unit at either side to make it a bit more difficult for tiny hands to reach in and grab...it should look good if you work with a dark finish that matches the unit.

After a while the Tiny Adventurer will give up and move on to something else.

You could take a thin piece of plywood and cut the shape of the gap. Spray paint it the color of the fireplace and velcro the piece in;) I did this for the gap on my TV and it looks great- not cheap;)

Thanks guys! I don't think a plant stand would work because he will topple it, but small bookshelves, or plywood should work well! Thank you!