I used this design to hold the eggs for our Easter egg hunt in our garden.  They are very quick to set up, and the spike will work on uneven ground.  It adds extra fun to find eggs dangling from trees.  They will fit perfectly on the type of egg shown in the photo of the retail box, and with the Cadburies eggs.  

Keep printing these with the leftover filament from the end of the reel, since each part is only a few grams.  Remember to set the printer to finish each part before starting on the next one.

Printing - Each spiked and hinging holder needs to have a cross piece printed.

Assembly - Using the slots, assemble the cross piece to every spiked or hanging holder.  See the photo above for guidance. They should have an easy press fit.   Glue if required.