to success find a big pretty cage and painted rainbow then while the cage is still not dry add then add the sprinkles. Put lots of the unicorns favourite foods like:
cupcakes
pizza
cake
chocolate chip cookies and
candy (unicorns LOVE candy)
put the food in the cage and set the it in place wanted. Wait until the unicorn trapped and then shut close the cage and take him/her to a place with a huge amount of space but seald from escaping.