You can get plastic PET bottles from most homebrew supply stores, i bought mine from northern brewer.
They're great & made to withstand the pressure.
"EC-1118 is a monster yeast. But it is also clean and quick. Like a humane serial killer."
1 Gal: Brandon O's-Graff
2 Gal: Big Ol' Barleywine
5 Gal: Graham's English Cider
5 Gal: Apfelwein
Bottled: Traditional Wildflower Mead, Burnt Apple Braggot, Apfelwein, Big Ol' Braggot
Kegged: Wee Bit O' Honey