foam

Has anyone done anything interesting/useful with the leftover foam from their Mavic cases? It's nice, dense foam that feels like it could be useful. But right now it's just garbage taking up space in my closet. Just looking for ideas. Thanks

Seahorse SE-920F Protective Wheeled Carry-on Case With Foam which I will use when I do more SAR work as it has plenty of room for all my extras; two chargers, MavMount, 7" tablet (not in it's slot at top) 5 + 1 batteries, props w/wifi hotspot, camera filters. All cables are under lid foam.