I had seen these notebook tees around last fall and loved them. Turns out they’re a super easy DIY. See my step by step instructions here. Promise, no freezer stencil or exact-o knife required!
It’s a little dangerous that I’ve figured out how easy it is to make a striped tee. You could do without the red stripe and make a fabulous striped one for yourself (stripes can be bigger if you leave more room between the masking tape).



