The full shebang. Make the whole party about dirty crafts and spend an evening or afternoon folding paper penises and making flower craft. Instead of pipe cleaners use the floral wire technique in the above picture.
Paper flower craft resources
— Check out the post I wrote about the book Paper to Petal. It's full of options and flower petal templates.
— You could make a flower and penis crown instead of a bouquet. Honestly WTF has this great tutorial that could be modified. She demos several types of flowers. Note that she uses glued crepe to secure her flowers and stems instead of floral tape. For a beginner using floral tape will be easier.
— If you really want to customize your color palette you can dye your crepe paper!
Paper penis materials
— Scissors (if you don't own a ton like me ask guests to bring there own)
— Glue sticks OR a tub of Yes! Glue. Perfect for paper crafts. Apply with q-tips or craft sticks.
— Things to decorate with (Markers, colored pencils, stickers, washi tape, etc.)
— Hole punch
— Green pipe cleaners for stems
— Ribbon to tie the bouquet together
— Some of my friends were more comfortable with x-actos, rulers, and cutting matte
— Flower craft supplies (crepe paper, tissue paper, floral tape, floral wire, pips, cotton balls)
Bonus tips and tricks
— It's likely not all the guests will have the same crafty skills. Prep some penises ahead of time so there are options for all skill levels.
— If you make paper flowers I recommend choosing the paper in a limited color palette so everything coordinates.
— During the opening of gifts save all the ribbons and notions so you can incorporate them into the Penis bouquet.
— At the party I hosted I served fondue along with phallic vegetables because it seemed like the most crafty food one could serve. Well, let's just say there were lots of giggles and wincing when we pulled our vegetables from the cheese. I've got tons of pics here of penises but the fondue photos make me blush so I'm going to spare you. It was however hilarious.
Lastly if you love the idea of the paper penises but aren't throwing a bachelorette party I also sell them as individual cards.