>>800881this
Threads/fittings for the green 1lb propane bottles are the same as the blue utility torch bottles. Neither one's more than $5.
The trigger-start head will set you back $20-30. Cheaper ones without the trigger aren't worth the hassle. They last about ever.
Little butane ones won't start charcoal very easy. Propane works nicely. MAPP works well too.
>Pic related>nevermind why I tucked my torch in bed