funnel or top of a soda/water bottle
We made the slime..in a cup we mixed one bottle of glue with some food coloring and some liquid starch. After mixed we let it sit for half hour before using a funnel to pour into the balloon. Cool thing is when squeezed or stretched you can see he color of the slime threw the balloon. It felt neat and so far its been few days with no smell and still is working the same as day 1. Thankfully it has a lot of give cause my kids are still trying to pop it.