I made this prank broken egg for the April Fools Day competition and also as as excuse to use some transparent filament I have. 

simple assembly just pop the two piece together. The Yolk is scaled to about 99.5% if downloading the model only scale before printing.

for best results the transparent print needs to have layers aligned, printed slow, no fans and thin layers. The print profile is setup for this. 

0.12 layer height

100% infill

aligned rectilinear 

1 wall loop

Wall width 0.5

Order of print outer/ inner

0 top/ bottom shell layers

infill/wall overlap 30

speed 20mm/s for everything

For filiment settings

Fan = 0 

Flow ration =1.01