Patchwork Cushion Cover

Note: I posted this in the sewing blog yesterday but for some reason it did not appear in the main blog.

I've been procrastinating a lot lately, so much that I found myself doing something resembling quilting. I made a patchwork cushion cover for my sofa cushions. I have no sewing machine, no pins, no chalk (I used a felt tip) and no patience for measuring, so making this one cushion took two days. One down, three to go.

My original cushion covers were Hideous Loud Print Orange and Modern Art Lime Green. Boyfriend pronounced them the ugliest pillows on earth. We had just bought them in a hurry so our friends would have something to sit on during our housewarming gathering 2 months ago. It's a small apartment and we don't have enough chairs. Red, blue and plaid is a big improvement. (Remember the plaid cow? It's the same cloth.)

I'm a bit worried about the inside seams fraying all over the place since I didn't have the patience to bind them all individually. I'm thinking of buying some of that iron-on interfacing and sticking it on. I'd just have to get an iron first. I'm also wondering how it would fare in the washing machine. I left about an inch of room for shrinkage, but what if the different kinds of cloth shrink differently? Oh well, I guess I'm not washing them anytime soon. I wonder if the laundromat will cold wash them and then give them back to me wet to hang out to dry?