A family photo album or frame helps preserve memories spent together. It's also a relatively inexpensive gift. Look for clearance picture frames throughout the year and store them for an instant gift under $10.
There are packages for almost any passion, for example, Kiwico or Raddish Kids send monthly STEM or cooking projects. If you're looking to treat a coffee or cheese lover, there are choice options for foodies too.
Consider an ice cream maker if you have a little more room in your budget. Kids will enjoy watching the paddle churn the ingredients, and parents will love that they can make their family favorites a little healthier.