Cove Moulding - Table Saw - Will work with pink foam as well:
Homemade Lathe on a Budget - Fine Woodworking Article
Мастерская Добрый Столяр
Wood Lathe - I've got an old cordless drill motor that may work for this!
Home made wood lathe. not too difficult if you can weld.
Photo Index - Fay & Scott - 36" Pattern Makers Gap Bed Lathe | VintageMachinery.org
It works!! Next step learn how to make bowls.
Plans for a wood lathe that will handle a 36" diameter bowl. I have the yellow and green components on hand. The gray components have to be fabricated. The headstock and tailstock will have to be upgraded later.