Anael--I work at a LQS and can get as little as 1/8yd (4-1/2" cuts of fabric) and would love to pick out some flannels to send to you with your BBs in the next couple weeks. We have lots and lots of soft baby flannels in many prints. You tell me how much of each fabric you need and how many you would like and we can go from there (if anyone else would like to donate to these, we can work that out too).
