Fun foam in ears?

Currently working on making ears for my fursuit and she is a Rabbit lop hybrid and lops have kind of diffrent ears then other rabbits:


On my first sivi head I just cut out some pieces and glued them together and used the warm glue to shape it, but I dont really want do that on my latest. the ears might be lighter without anything in them, but them might not look shaped.

So have anyone else used thin fun foam in ears with no problem?



(The picture used for refs on the ears are of my own little lop girl Tommelise.)