Bracket for garage banners

I bought a garage banner for the holidays. When it showed up it didn't have any hardware for mounting. I purchased a set of brackets off Amazon for $37 but it only had 4 that banner needed 8. So instead of buying more brackets that didn't fit well I decided to create my own. Here is the results. It's not perfect but works well. Print the. On the side with supports. I live in a windy area so I use 30% infill but if you're in a mild area 20% should suffice. I just use a zip tie through the banners grommet and the hole on the top of my bracket. I plan on making a lower bracket that utilized shock cord to keep the banner tight.