I did a shower using one of Traci's old kits Vanilla Sky:
invites
diaper cake
water bottle labels
Another with one a variety of jungle/animal kits:
invite &
envelope
prayer cards
diaper cake
banner
Tips:
Pick a theme and find a digital kit (or a variety of kits)
Use the kit to make:
invites
banner
food labels (the little details really help)
water bottle labels
cupcake wrappers or cupcake toppers (or both)
name tags
favor tags OR use the templates about to make favors to put treats in
games (I make game booklets with traditional baby shower games - so all info is in one place)
diaper cake
centerpieces or small vignettes around the room