Alternatively...So what if it's tainted? See these easy steps:
1. Let it incubate in some Bugman's
2. Pour in some Ostka every now and then
3. Read it some bedtime stories from the Deus Sigmar every night.
4. ???
5. Watch as a manly dragon emerges from the shell, with chest hair, a magnificent beard, and chiseled abs.
6. Profit.
Gunpowder and engine oil.
Let's make us the world's first gunpowder dragon.