Operation: cstand ;)

I’ve a little girl…who has some rubber teats which helps she sleeping thru the whole night. But…the best of these devices must be charged prior to usage - lately i’ve spend about 30-60 seconds charging them; but I’ve got an idea to create a “charging station” - from a sheet of paper by using some cad magic. The plan was to create a maimed pyramid - to get some stability; because the top hole should has about ~25mm diameter.