I was briefly interested in flasking years back. I read that, in a pinch, one could boil water over the stove and attempt some flasking in that semi-sterile (but hard to control) environment. I used a laminar flow hood once to flask a paph pod (Toni Semple x roths), and got protocorms, but I think I replated them too late and none of them grew. Since then I've been too busy and lazy to flask...