Step 19: Sewing the Fab-brick cover: final step
Once the brick has been filled with sand the flap can be stiched or bonded or glued over permanently to hide the recessed spout.
You need at least three bricks to make a draught excluder, now you see why a Singer QUANTUM(r) 9940 computerized sewing machine would be more than just appreciated!!!!! Hmm now I've got to figure out how to add this to the Etsy group. Tah Rah. Here's that link to my Etsy listing again