They appear to be a couple ounces smaller than Anders bottles, but I'm partial to 187 ml champagne bottles.

Squeeze bottles are you answer. OXO makes them in three sizes, 6oz, 12oz, and 16oz. Of course, Amazon has many options listed, at all sizes and price points. Otherwise, champagne or olive oil bottles, along with Spill-Stops, if needed, work great. Olive oil bottles will run from 8oz to 32oz.