One of my favorite things to find at thrift stores are mason jars. They come in so many different sizes, shapes and designs. They are perfect for storing leftovers, keeping small items organized and SO SO SO many other things....which is why I've put together 15 DIY's with mason jars. These are all reletively easy things you can do and won't break the bank. Many of them would be great to give as gifts and an easy afternoon craft.
make your own solar powered lights. from here
make a place to store and light matches. from here
this could also be great in the shower to hold shampoo and conditioner and look much nicer then a bunch of mixmatched bottles.
make your own candles! From here
make an easy recipe for someone you love. from here
cover the insides with fabric and create votive candle holders. from here
add a message in hot glue so when you paint them they look completely custom. A great idea to be combined with the next DIY or to have cookie mix inside it. from here
adding multiple colour spray paint in a really neat design. from here.
wrap yarn around them and spray paint for a really cool effect. from here.
lacy mason jars from here
how about an easy air freshener? from here
paint the outsides in great fun colours! from here
a cute little sewing kit and pin cushion. This would make a nice gift for someone going to school or moving away from home. from here
make a herb gardens with them. love love love this idea! from here
and finally! you could make your own mason jar tumbler lid! perfect for picnicks or kids :)
I hope that gave you some inspiration and I feel like it would be amazing to combine a few of these techniques to make low budget gifts and fun things for your home.