Melted crayon art. Not for young kids to do- your fingers get pretty hot, and you also get the occasional wax splash. Interestingly, the cheapo crayons (the ones that don't draw well) melted the easiest and were most vivid.
Colorful Watercolor Paintings of Radiant Trees in Nature by Anna Armona - My Modern Metropolis
Double Quilt Cover Sets Shahzade Blue Quilt Covers Online
"Straight stitch can be quite effective. By fanning out straight stitches from a center point and making their outer edge a bit jagged, you can create a pretty nice embroidered flower.
Pink Druzi Wool Blanket with embroidery stitches // Koromiko
There is something really appealing about these circular embroiderys. Now convinced on the orange flowers though.
Carina's craftblog: Circular randomwork embroidery Good blog about embroidery
This color wheel project teaches embroidery
Appliqued felt and cotton fabrics. Three from a series. Each circle is about 5.5" (14cm) diameter.