As most of you know, I always save my tiny scraps of glass and encourage everyone else to do the same. Here's something you can do with those scraps - a hot shimmering sun! Just start in the centre with small pieces and spiral outwards using bigger pieces as you go (as if you were building a rose). Start adding some blue in as well and you have a lovely hazy, desert sun - shimmering in the sky.
You could also use this technique for fireworks too!