As I am sure you recall I have a pet hate for Balloon arches. Well, how about this? A beach ball arch. It looks simple, affordable, and totally doable.
WikiHow has easy-to-follow instructions. The key thing to remember is that you’ll need a latex-based glue
You could also use a latex rubber repair glue
For a large 6m doorway arch with beach balls and inner tubes, you will need about 11 balls (28cm), 10 small inner tubes, and 2 larger inner tubes or floatation tubes that form the base.
Always remember to anchor down your Beach ball arch with some weights or sandbags