Looks like Sweetie #2 found the yellow morning sunshine :)
I sewed my very first pillow cover a few days ago. The easiest kind - an envelope back. It's the light blue one with lime green circle. I tried using Sweetie #1's pastel dye sticks but it was an absolute no go. I couldn't get a solid colour and it kept clumping so I used acrylic paint instead. A bit stiff but this is just an experiment anyway. And it actually turned out not too bad.
I got the quilt from a second-hand store that was closing down :(