If you like the Facehugger you may want to check out the fitting alien egg dice tower.https://cults3d.com/en/3d-model/game/alien-egg-dice-tower
There are two versions of the facehugger.
One simplistic design that fits more the flexi-family and one more realistic design.
Edit 30.12.2019
Added a version that is 150% in size and can fit a Ø12.8 mm x 3.3mm depth magnet.
Edit 14.03.2020
Dont buy this free model from people like Zoe or WeGotUsSomeMasks on Etsy.