Radioactive Waste Birthday Cake

We don’t know who decorated this cake, but the occasion was the Radioactive Waste Manager’s birthday. Redditor centinel4, who lives in Austria, posted the picture. He must have been at the party, because he knew that the barrels are made of marzipan, and not marshmallows or earplugs as others thought. You’d think the appropriate flavor would be yellowcake, but the brown cake was important to resemble soil in the edible diorama.