Kmart has the My Little Pony Equestria Girls® “Rainbow Splash”™ Tie-Dye Headband Kit marked way down to only $2.99 right now! (Reg $7.99) This kit includes 3 satin headbands and cutie markers, mini-mister, and instructional guide to create your own tie-dye headbands.
It doesn’t look like store pickup is available for this, but it does ship for free with a $30 order.