Finishing the shell

Here it is – the last few rounds of the shell!

Round 10:	24 sc	(24)
Round 11:	[sc, dec] x 8	(16)

Stuff the piece, shaping it so it's flat on the bottom.

Round 12:

dec x 8

(8)

And you're done! You might be looking at your piece and wondering – now wait a minute. Why is there a giant gaping hole in the middle of my piece? 

Never fear, there's a tutorial here: