A funnel that slides over the top of the bubble wand container to make it easier to pour in bubble mixture from a bottle without a spout without spilling any. Includes a hole in the middle to allow air to escape to avoid glugging.

Tested with bubble wands from Asda in the UK. The source Fusion file is available (under the “Download STL” action because that's where Makerworld puts it!) if you need to make modifications.