I depends if you're willing to pay.
Sites like http://www.vworker.com/
allow you to place a request and freelancers will bid to deliver it. They will want to be paid though.
If you want it for free or low cost, I expect you'll need to find a like minded person who doesn't mind giving up their time, feel free to ask here, but you may draw a blank.
You don't mention the age of your students, but if they're computer literate, you might find one of them has an interest in coding.