How to make a balloon stack base

So this is how I make my long bases.. I use this size combination as I personally find that these are what I find nicest to work with and also they fit perfectly in my vehicle when transporting.

Though these can be altered in size to suit your preferences.

As the 8” are slightly smaller they create a natural dip in the base, which I like for single number stacks as they sit nicely.

If doing a double stack then you may want to level them out by adding in small in fillers to the top to level them straight!

Have fun creating!