Rainbow jarcakes for St. Patrick's Day

I have - literally - at least a hundred mason jars from the jarcakes I made for my sister's wedding last summer.  When I brought them home I kept saying I would send jarcakes to various family members to unload them over time.  St. Patrick's Day seemed to be a good enough excuse to ship some off.

Since I had success making the zebra jarcakes a few weeks ago, I used the same layering technique with more (annoyingly bright) colors to make rainbow cupcakes in jars and shipped them out.  Two boxes went out at the beginning of the week...one box went east and the other went west.  Hopefully everything arrives before St. Patrick's Day!