If you have a sewing machine, they are very easy to make!
If you need a pair in a pinch.. You could always take some opaque stockings from the dollar store and cut them right at the ankle and then how high you want them to go up your arm. Children's size should keep them from being too loose. You could also do the same with a trouser sock.
Another "last minute solution" would be to buy the footless tights with the lace at the ankles. These you can cut and the end near your wrist will have a 'finished' appearance.
Wishing you the best of luck, but again, if you have a sewing machine, I would advise you to make your own. You could make pairs in every color for less than a dollar with some sale fabric.