yes - I too favour the black and white plastic - as it's cheaper than mylar - works as well - and doesn't get nearly as dirty during foliar feeding...
Making tents/rooms is fun too - I have a little mini-tent with 3 propagators in it - which looks a bit like a teepee.
well.. to be honest it doesn't, it just looks like a regular tent... but I wanted to say the word 'teepee'...