Tuna cans make great personal sized cakes. First make sure they are rinsed out really good then you can use the them for making things things like brownies or individual pineapple upside down cakes. The pineapple rings just fit in the bottom. They are the perfect size for cooking in a toaster oven or in a little coleman camp stove oven. Or just place a whole bunch on a cookie sheet and bake. They're great for carry-ins. I made these for my husband to take to inventory day and all the guys loved them. The guys all said they were better than cupcakes because there was no paper to mess with and they perfectly man sized.
LOL..well see what your brains can come with by using a tuna can...and also..you can cut the bottom lid off..all you have is the round ring..use a pair of pliers and gloves..to make your own cookie cutters...
Was reading a book the other day at my mom's and in it was a suggestion of using an empty tuna can, punch holes (with nails) in the bottom and setting them between plants (the illustration was 4 plants) in your garden. Then when you water the garden, you fill the can and the holes let the water out to the plants at a slower rate....plan on trying it next spring. janiee farmgirl #390