[Jigman13]

Drill a hole in the side of the cooler about an inch and a half to two inches from the top. Put aerator hose through with stone inside (obviously). Fashion a strap on the outside of the cooler using small short screws and suitable, slightly rigid material allowing the bubble box to hang as if clipped to a bucket. To minimize leaking during transport just bungee the lid down. Cheap, easy and effective.

I picked up a 28 qt at a yard sale and did this. I use it for herring, sunnies, shiners, suckers, chubs and goldens. Fits in my trunk easily and also fits snugly in my ice fishing sled (which is actually a cheap ass concrete mixing tote from Home Depot with a rope strung thru it lol).