[Monica]

Not necessarily homemade, but perhaps some of these will give you ideas?
Large Polly's Window & Shower Perch for Birds - Perches & Ladders - Bird - PetSmart (some say they have issues with the suction cups)
Bird Perch: Sandy Shower Fun Perch for Parakeets, Conures, Parrots, and more
BUSYBIRD.COM - Shower perch for birds that love misting or showers, this hand-grooved PVC perch with suction cups provides a great place for your bird to enjoy their shower, www.busybird.com - busybird toys, busy bird toys, busybirdtoys.
Showers for Parrots (DIY)
Bird Toy Outlet - Detail1 - 0255500 - PRESIDENT'S SHOWER PERCH - Medium Birds - Small Birds - Bird Toy Outlet (another DIY)
Untitled Document
BIRD PERCH, PET PARROT PVC BIRD PERCHES at BirdsPerches.com (unique PVC perches)
!!Official Sandy Perch Web Site - conditioning perches and stands for your birds and pets!
Bird toys for large parrot
Customperches.com

PVC perches can always be wrapped in vet wrap, hemp rope, cotton rope, or sisal. If you want to build yourself, just look at the ideas above and perhaps you'll get an idea!