I saw a pattern for shark mittens
on Ravelry on really wanted to make them but the pattern called for tunisian crocheting and I had no idea how to do that. The pattern also says you can also do it in regular crochet but the pattern itself was for a small child. So because of that I pretty much just used the concept of the shark mittens but made it in the pattern (with a lot of alterations) of some fingerless gloves/mittens
that I had recently crocheted and knew would fit a small teenager's hand.
I wrote up exactly how I did it here
(All the links are from Ravelry which is a wonderful site for those who crochet and/or knit. To see these links you will have to make an account but it is free to do so and highly worth it. They have thousands of free patterns as well as many that can be purchased.)