Back rest for my Yeti Load out bucket

I know there are some resourceful Louisianaians on TD and I am hoping I can get some advice from a fellow duck hunter. I'll be using my Yeti Load Out Bucket as my bidon this year. Im cool with sitting on a bucket while I hunt but a back rest could be a nice addition. Anyone have a brand of seat or creative way to rig up a back rest for a Yeti Loadout bucket?

Any insights would be greatly appreciated