This is a little collar that I made from a Mollie Makes kit. It was very quick to make, and I made it over one evening. The only thing I found difficult was that the instructions didn't seem to say that you needed to make two halves - I was puzzled by how small it turned out until I realised I needed to make a second half!
What I tend to do with the Mollie Makes kit is cut the instructions out of the magazine and place them inside the kit, and seal it closed with a piece of washi tape. Then, when I need a quick craft project, or one to pop in my bag in case I get bored, I have everything there I need and don't need to hunt for the instructions!
I store all the kits in a little basket.