I use a heated (by candle) darning needle that I hold with a pliers to make holes in my vials. Once I get it good and hot, I can punch holes in several lids before I have to reheat it. You fon't need many holes, you just need to watch to make sure you don't get the substrate too damp. Poecilotheria are not the easiest species to breed. I think you've probably got plenty of time to get the vials made. DianeSo ventilation holes that are 1 or 2 mm in diameter, should be escape proof, right? Thinking of attempting to breed my female regalis and if i had slings escaping, the wife would kill me.