We've been going with the laboratory theme in the kitchen and were able to finally source some lab flasks and white (white!!!) silicon stoppers. If you order these flasks, make sure you are getting real ones intended for the lab. Consumer grade glass is too thin and too delicate. There are knock-offs for the consumer market that are cheap (read the review on, say, Amazon of their providers).
The bride has been experimenting with infusing vodka with this and that (and thus far the results are fantabulous.
Beakers and Erlenmeyer flasks: Science Lab Supplies
White stoppers: WidgetCo