The A-shaped ones... if they come to a point at the top, you'll probably want some plywood squares(like 1' or more) to help distribute the table weight. I wouldn't trust particle board to hold a table in two places.

Those would probably work great for stability but the requirement for them to be toward the ends of the table for balance might prohibit you from sliding chairs in and out.

Also, not cheap.

Easiest and cheapest way I can think of is to scrap those legs in favor of some screwed together/laminated 2x4s and a can of spray paint to match the table color.

Any lyrics you can remember? Song themes? Did they sing in English?