Yesterday I got lazy on the linkage. (And got busted, too, ahem.) This morning let me offer proper info on where I got the stuff to make the stuff in yesterday's post.
Mameyakko by Kokka fabric for my bag -- reprodepot.com, but they don't carry it anymore. I just scoured the Internet and found it nowhere. (Deep breath as I beat back panic at the thought of this fabric no longer existing anywhere on earth.)
Mr. Stevens's bag lining fabric is Harmony by Rosemarie Lavin for Windham -- I bought it on eBay, can't find it there anymore, but did find an Etsy shop carrying different colorways.
Umami Midori Bags pattern book -- I bought mine from alittlegoodness on Etsy. I don't see another copy, but the shop does carry other Japanese pattern books, along with Lotta Jansdotter's Handmade Project, which is not available here in the States. And, FYI, the Midori book is ISBN4-579-11083-8. I recommend it for its great, basic bags.
For the image transfer of Steven's pretty face, I downloaded a picture from his Flickr account, played with it in Photoshop, then printed it on T-shirt transfer paper. I then ironed the image onto acrylic felt and cut it out. (I'm too stingy to use my wool felt, but I bet it would be even nicer.) To fuse the image to the bag, I used Steam-A-Seam, then embroidered around it for effect.
ETA: How could I forget about Nunoya, my inspiration from last week? They don't carry my exact bag fabric, but they carry other fabrics that are spectacular. I haven't checked their prices, and they are in Spain, but the site is worth a look.