TIAS Days 5, 6 & 7 — what on earth can it be?

I've been busy and not tatting very much. Thank God for TIAS — just a little bit of tatting each time.

So, here are Days 5, 6 and 7. As you can see from my wild guesses, I really have no idea what it is! After Day 6, I thought, okay, it's going to join back to the second picot on the flower, then it will go back out and make another loop of the same shape and join back into the third (or first) picot of the flower. But Day 7 joined back into both those picots! Back to the drawing board…

Day 5: Is it an easychair with a big cushion at the foot?

Day 6: Is it one leg of a pair of trousers?

Day 7: Is it a cannon (with a flower on the back end)?

Day 7: Or is it the upper part of a ballgown?