Made the base for iris to hold ring as gift, the ring is what i added to iris in cura to hold the foam and ring. part of the base is from Ebross (Plant VS Zombies Chomper) Print in place iris box (remix) by LoboCNC if you scale iris up 1mm it fits the base a bit better.

Thank you Ebross for the vine https://www.thingiverse.com/thing:1628297

Link to Iris https://www.thingiverse.com/thing:1817180