Gather several eggs. Wash and pat them dry. Remove the contents of the eggs following our instructions on how to blow out eggs.
Find images that are small enough to glue onto an egg, preferably Easter or spring-themed pictures. You can cut them out from magazines, gift wrap paper, origami paper, calendars, brochures and other paper with interesting prints.
Another option is to print out online clipart and other images using a laser printer (do not use an inkjet printer, the ink will run once you start decoupaging).
To give your Easter egg a varnished look, use a paint brush to apply a coat of decoupage medium on the entire egg.
Decoupage medium like Mod Podge is a sealant as well as being a glue. This means that when applied on the entire egg, it will help waterproof your work. Appply 2 to 3 coats for proper sealing, allowing each coat to dry before applying the next one.