I havent made a shaker card in a LOOOONG time, but its easy to make your own frames with the square Nestabilities. This 6x6 card is filled with sand so when you shake it the sand rolls around like Changito is really at the beach.
Here is a better close-up of the sand.
The front of the card says "Have a Beach-n Birthday!"
Supplies used: Prisma pencils, gamsol, Nestabilities, and Bazzill cardstock.