A while ago I was shopping at Target. Waiting for my better half, I was just wandering around their bargain area and noticed a bunch of these plastic containers with The Avengers and Teenage Mutant Ninja Turtles on them for $1 each. I didn't know what I'd use them for, but I figured I could use them for brewing somehow and bought 6 of them. Before my next brew, I figured they'd make perfect hop addition containers. Since they've worked so well for me for several months, I figured I'd share what I did.
The process is fairly simple, and you can probably guess it by looking at the picture. :
Now, on brew day, just weigh out your hops/spice additions in the containers, and close the lid. Rotate the lid to the correct time. Voila! Easy peasy. I'm sure I'm not the first one to do this, but I hadn't seen it done before. If you find this helpful or have any questions, let me know in the comments.