Help Wanted!! I need some ideas!!

For the next two weeks, we will be doing our farm unit. I purchased several packs of the "Grow a Farm Animal" capsules a couple of months ago from Target's Dollar Bins. I remembered reading something on someone's blog about using these kinds of capsules in math and graphing their growth. Who was that???!!!! Also, does anyone else have some ideas on how to use them?? PLEASE SHARE!! Any suggestions would be greatly appreciated and I will take pictures and let everyone know how things worked out. THANK YOU!!