Arches are very popular - they look amazing and really standout.
Here's some examples of my recent work.
The orange and yellow arch for Coles Baldivis was huge!! 4.6m between bases and just under 3m below the arch. It took 240 balloons to make and was up for 2 whole weeks.
The blue and yellow arch was for Baldivis Garden's Primary School's PTA group. Big enough to walk under but with 160 balloons.
If you're interested in balloon arches remember you don't have to worry about squeezing all these balloons into your car..there's a framework inside that I put up and take down. I also bag up all the balloons to keep them safe and deliver them in my people carrier. It takes about 30 - 40mins for me to assemble.