When I started playing Circle I was sticking to Baldur and Krueger. I realised I was going to need a few templates for spells and feats. I photocopied and cut out the templates in mkI Primal and used them for some time before getting really tired of them. They were practical and cheap, but they didn't look very good. I decided to make my own. I started out by making a couple of 4" Rift templates for our old friend Kromac.
Then I went on to make some Pillars of Salt for Mohsar the Desertwalker. It's a very cool spell and I find it useful to spam it from time to time, so I made four of those. I know they don't look like salt (or anything related to a deserts for that matter), but I wanted them to fit with the murky forest feeling of my miniatures' bases.
I'll keep doing more templates. Baldur's Rapid Growth and Morvahna's Eruption of Life are obvious choices, but I haven't decided how to pull those off yet. Epic Krueger's Lightning Storm is even more of a challenge. Rift and Pillars of Salt were both easy and fun to make, so I'm confident I'll give the other ones a shot as well.