cushioning my oops

This week is (almost) all about swaps and bees for me.  I caught up on Heather's block for the QATWII bee - she wanted a mosaic block a la Elizabeth Oh Fransson....

This block was real fun to make although I got a little carried away and made a mahoosive block with a tiny slither of fabric on one side for some reason.  And here are the blocks so far...

It's going to be a really bright and fun quilt I think.

Then after a zip purchase or two, I finished my first ever pillow / cushion cover for the Modern She Made swap....

It's 20" square so quite big.  I used Judith's fab tute on hiding the zip under a flap and followed Angela's idea of lining the cover front and back.  I was dead pleased with how it turned out until 5am this morning when I realised that I'd sewn the lining on the wrong side of the zipper....

oops! can you see? 

Still, I dare not unpick and redo as that way disaster beckons and maybe I'm the only one that will know ;)  Who am I kidding?  Where's the pesky seam ripper?!

Quick question though - should I add a binding or leave as is?  I am leaning towards no binding but what do you think?

Oh, I forgot to add that my Mouthy Stitches tote and key fob were safely delivered to the lovely Erica who, in a weird 6 degrees of separation type thing, made the tote for Patti who made the tote for me!  I LOVE THAT!  She liked it, which was a massive relief as there was such loveliness and inventiveness on show that I was worried she would be a little let down.  And she took a photo of the key fob I made that I forgot to photograph..