I loosely followed a tutorial on Craftster but changed the dimensions from the original to match my favourite makeup bag. I'm planning to make another 6 for female relatives. If I get sick of making these before then, I may switch to tote bags.
The mushroom fabric is a Japanese craft cotton from Spotlight. The yummy linen bird print fabric is some I bought on Etsy from Lara Cameron of Kirinco. They are lined with a red polyester. I also interfaced them with plain flannel (a la Amy Karol) - the first one I made wasn't interfaced and was a bit floppy. The flannel gives them just enough structure to allow them to stand up by themselves without the crunchiness that you get from heavy iron-on interfacing.