In 8th grade I made a giant parrot on silk fabric using a traditional batik dying technique that uses wax to resist the fabric taking on the dye in specific places. It was complicated, long and ridiculously messy. This new trick is a great way to transform old linens into new pillows and curtains with a little personality. All you need is some school glue! Although this example from U Create was done on clothing, it's a perfect technique for putting old linens to use. They make great pillows, curtains, toys and more, but giving them a fresh feel is often needed. This fun handwritten vibe will lighten up any space. Customize it with personal words, lyrics or meaningful information.
The idea is simple: wet the fabric in use, apply gel glue, allow to dry, and then dye as you normally would. I like the idea of using sheets and linens specifically as they'll take the glue better than a thicker t-shirt weight material, giving you slightly more crisp and clean lines. Look for eco-friendly white glue at the craft store nearest you and get busy!