I was making a mug rug for jtlhmmwabodf for OWS. She likes Union Jacks, and so I decided to try something new with reverse applique! I had a lot of fun sewing this, and I thought some of you might like to try it out.

This is an easy design for this technique as it's all straight lines, only three colours, and the lines all go to the edge (for easy cutting). But you could adapt this technique for all sorts of designs.
I wanted to get my shapes quite accurate, so I decided to use Glad Press and Seal. This stuff makes it very easy! I printed a Union Jack image, and traced over it (use a waterproof pen so it doesn't smudge).

I cut 3 fabric rectangles, and left plenty of room around the edges.

Then I made a sandwich with the Press N Seal on top, and pinned it nice and flat.

I sewed over the lines with a straight stitch, and then peeled off the Press N Seal. (Don't zigzag over the Press N Seal unless you want to spend FOREVER picking out tiny bits of plastic. Ask me how I know

)

If you don't want to use the Press N Seal, you can just sew directly on your fabric sandwich. You could mark your design with tailors chalk or a vanishing embroidery marker, or work freehand.
I went over the straight stitching with a narrow, close zigzag. (You can just leave it with straight stitching, but I liked the thick stitching, and also it makes it much stronger, especially if it's an item that you want to wash.) Then I carefully cut out the layers close to the stitching.

Voila!

I backed mine with batting and fabric, and top stitched around the edge, to make a mug rug. But I think you could turn a panel like this into whatever you wanted - cushion? pocket on a bag? patch on clothing?
I like the texture the raw edges and stitching give - something a bit different from traditional applique. I like the second colourway even better:-

For this one I used darker and more muted colours. My fabric sandwich was blue/white/red, and I stitched with navy thread - I like the outlining effect a lot.
Hope you like it!

(I was a bit unsure which board this should go on, as I'm not sure this technique really counts as quilting. Since this is a mug rug, and since there are lots of mug rugs here, I thought this would be the best place. But if you think it would fit better somewhere else, please let me know!)