I was going to say party kit but others beat me to it. How about "party in a box" to send to a student at college or otherwise out of town? End of finals, birthday, an intense project, or just because ? You could give suggestions on customizing with a cake from here www.creativecakery.com (a small business which makes wonderful bundt cakes that ship well) or a gift card from a pizza chain or subway. (I know lots of colleges offer these but they are usually just the same stuff they serve everyday. I remember my parents sent me a snack box which featured soda crackers from the cafeteria!) You could do themed paper goods, a door banner to fill in (Pizza Party at 9 Tonight! Birthday Girl! AttaBoy!) even invitations to put in dorm mailboxes....
This idea could be tweaked for an office party, bunco group or a shower-at-a-restaurant-- very handy for a working person.