For the bridesmaids, how about a pair of earrings? The ones listed on this WeddingWire article (15 Bridesmaid Gifts You'll Also Want For Yourself) are super cute and just slightly over budget at $22. There are also a ton of jewelry sellers on Etsy where you can get cute pieces!
Likewise, for the groomsmen, you may find a nice piece of jewelry or gift inspiration on Etsy! I had a quick search on Etsy and found some customizable hip flasks under $20, they could be an awesome gift!
How many groomsmen and bridesmaids are in the wedding party?
Do you know anyone with a cricket? I bought my bridesmaids $9 wine tumblers on amazon and my future mother in law made vinyl decals to add to them. You can usually get blank flasks for the guys for about the same. Even if you have to pay for the vinyl it should be pretty cheap but still useful!
I got them these cute tote bags from target that says “brides tribe” $3 each and then at academy there is Magellan tumblers for about $7 each. My friend has that thing where you can put letters on tumblers and shirts so then we will put the names on the tumblers!