Now, I know what you're thinking, what's the worst that could happen if I put clay in the oven? Well, my curious friend, let me tell you, it's not pretty. The clay could crack, shatter, or even catch fire! Yeah, it's like a clay-mageddon in there! But, don't worry, with the right precautions and preparation, you'll be baking like a pro in no time!
Can You Use A Convection Oven To Bake Polymer Clay at Nathan Oneill blog
On a more serious note, some clays can release toxic fumes when heated, so make sure you're working in a well-ventilated area. And, please, for the love of all things ceramic, don't try to bake polymer clay in your home oven - it's just not worth the risk! But, hey, if you're feeling adventurous, you could always try your hand at pit firing - just kidding, don't do that either!