welll if you NEED to make a pipe like for easy transport just roll a foilie

if you have the time put a pen into a plastic bottle by melting a hole in the side so that a pen shaft can fit snugly through at about a 45 degree angle or so. make sure it's airtight, and make sure the mouthpart of the foilie is wider than the pen shaft (but not too wide). bend the foilie so the bowl is facing upward and that the whole foilie will slide on and off

voila you have a decent one-time/desperate slide!