I've done botanical printing with leaves, fruits and vegetables but I've never used celery. Cut a few inches up from the root end and used as stamps in pink and red stamp pads, it creates beautiful roses.
Такая разная Луна: 25 идей для декора - Ярмарка Мастеров - ручная работа, handmade
DIY no-sew stamped scarf. Make one in whatever colour to match your travel wardrobe. Brilliant!
Home made sun printing...original tut is here: http://web.archive.org/web/20100919211618/http://threecreativestudios.com/freeprojects/tom/sunprinting_TOM.pdf