Start with EASY Floral Chicken Wire Organic Centerpiece ~ Flower Moxie (14 min, Flower Moxie), then DIY Wedding Centerpiece (EASY DIY) (12 min, Flower Moxie). All 7 lessons here are free, from the teachers' own official uploads. You'll need electric balloon inflator, balloon garland kit, balloon sizer and a few more basics (about $160 of kit).
What you'll need
Electric balloon inflator: Hundreds of balloons without a sore chest.
Balloon garland kit: Strip, glue dots and balloons.
Balloon sizer: Even, professional garlands.
Backdrop stand: Frames for arches and walls.
Assorted latex balloons: Stock in popular colours.