How do I make a fall pumpkin topiary?

Here's one idea: https://www.hometalk.com/diy/craft/holiday-crafts/create-an-easy-halloween-tipsy-pot-planter-in-an-hour-32806387

Create an Easy Halloween Tipsy Pot Planter in an Hour

here's some examples! https://www.diynetwork.com/how-to/make-and-decorate/decorating/6-ways-to-make-a-pumpkin-topiary-pictures

Hello. Here are some ideas for your considerations.

Hope this helps.

https://www.hometalk.com/diy/decorate/pumpkins/decorative-stacked-pumpkins-32104573

https://www.hometalk.com/diy/decorate/pumpkins/how-to-make-a-stacked-pumpkin-decoration-10235761

https://www.hometalk.com/diy/decorate/pumpkins/great-tutorial-on-how-to-stack-pumpkins-20934701

https://www.hometalk.com/diy/stacked-ombre-pumpkin-topiary-630376

https://www.hometalk.com/diy/craft/seasonal-decor/pumpkin-topiary-39497937?

https://www.hometalk.com/diy/craft/seasonal-decor/s-14-topiary-techniques-that-are-insanely-popular-this-fall-21633619?

This is minimal work, but today I bought two medium size pumpkins and two mum plants for a little bit of cash The pumpkins were $2.39 each and the mums were $2.99 each. Now I will cut a hole in the top of the pumpkins large enough to hold the mums, making sure I put additional dirt in the pumpkins to hold the mums. I will have my child draw a Halloween face on the pumpkins and unless I want something else to decorate them I will leave them on my front steps! I bought one yellow and one burgundy mum.

Just a simple suggestion.

https://celebrateanddecorate.com/stacked-pumpkins-for-fall-decor/