I'm predicting that this will be split 50-50 between the Brits and the Americans across the pond. I myself have always enjoyed pudding or cake batter or something with a similar consistency as a gunging element, as opposed to the translucent "gunge" you can buy and seems to be common in British gunge tanks. Both are great, but if you had to choose, which one would you pick?

Cake batter, but honestly, just because of ease. You can control the amount, the colour and the consistency without much fuss. The perfect slime solution!

With enough paint / colouring, natrasol can go pretty opaque

If someone knows where to get the amount of cake batter they use in the US in the UK for a reasonably price, then I would definitely use more cake batter

American here, and definitely partial to cake batter. You can mix in things like oatmeal flakes to turn it into "chunky slime" or make it velevet-y smooth, to your liking.

Cake batter, you can control the consistency and it taste better.

This was prophetic on my part-- a few days in, and it's sitting at 38 to 38.

I'm American and grew up with green slime. When I was younger, I was more tolerant of cake batter (although cream of wheat was what I really wanted), and I thought cellulose/gel type "gunge" was off putting. As I've gotten older, I've really come to appreciate it and now it's my preferred messy substance. When it's too thin, it's visually underwhelming and when it's too opaque, it just looks like paint, but when it's thick and gooey and a little translucent, I absolutely love it. I am still partial to radioactive green, though.

Aside from the pure visuals, I also like that it's safe for penetration. It doesn't taste good, but its not horrible, just enough to add a safe bit of 'ick' factor to the unlucky victim's punishment.

I'm American, and I prefer Natrasol - the texture is something else, and it is so easy to clean up! I wish it was a bit more readily available over here...

That's why we have custard, though with Tesco having withdrawn their value version it's not as cheap as once was.

Cake batter is also edible, so there's a plus.