I work in a nuclear medicine department- we get tonnes of radiopharmaceuticals deliveries in rigid plastic boxes (approx 40cm x 40cm x 40cm). We also get ice packs as well.
All are a surplus for us so If anyone would be interested in either (there are a lot of both) you would be welcome and help us free up space.
edit. the boxes originally contained short lived isotopes- Tc99m and Lu177 so are not at risk of being contaminated!