This one made in a similar way, like the pine cone. I cut foam on squares and glued to the carcass.
- foam squares, I did not measure, cut on random pieces (to be honest, very nice to make it at the end, when not so much material left, I cut leftovers, some stripes, rounds and just not straight pieces of different colors)
- 2 foam stripes for laying it inside and outside areas.
- plastic or wooden ring (I have no idea from what is mine, I found it in my stuff).
It was pity to though out leftover, so I made second one with different colors. It looks better than on picture)