Every bottle welds 3D printed parts into one piece, with a bond stronger than the plastic itself. The only question is which plastic you print with:
Print PLA? → PLA Gloop! (75ml to 950ml... yes, we have Big Bottles)
Print PETG? → PETG Gloop!
Print ABS or ASA? → ABS/ASA Gloop!
Mixing materials? → Grab the flavor for EACH plastic... respective Gloop! on the respective part. Here's how.
Not sure what you need, or gluing something weird? Start with the FAQ or ask a Scientist. And yes, there are t-shirts. (PLEASE don't be wearing your Science Sauce.)