Thank you all
Serendipity, I really like your cocoon description lol
I made a ball shaped base with the willow, my original idea was to weave the seagrass through this so it became a seagrass ball
I obviously was being more than a little ambitious and not knowing how or why it managed to changed shape before my very eyes lol
I quickly redesigned it, adding in an entrance hole and then just pretended this was what I intended to do all along lol
Yes a cocoon, that is exactly what I meant to make lol
They both loved the tunnel
I put it in the playpen, placed the closed side on the floor and the top open end on the roof of their castle thingybob
they both ran up it and down it several times
Separately of course, but they share the playpen and playpen toys
And Ebony of course had to have a little nibble of the end of it, well she wouldn't be my Ebony if she hadn't lol