Kwik-Covers! These are the best way to cover your tables and keep them covered! They won't get blow off by the wind or accidentally pulled off. Available in many colors! https://amzn.to/2LTTefC
Food Tents - Keep flies off your food with these food tents. They fold up for easy storage. Multiple sizes available
https://www.amazon.com/PicniKing-49x27x17-Standard-Guaranteed-Protection/dp/B0789113R9/ref=sr_1_8?keywords=food+tent&qid=1582464390&sr=8-8
The above links are Amazon Affiliate links