1. making cards - they can be folded and decorated with pressed flowers from the garden - just hpress them in a phone book for a week and then carefully lift them and stick them on cards. It's fun and can inspire a lot of creativity. If you have some hidden drawing or painting talent use it!
2. Along with that idea is a craft that kids in other countries do - it takes patience but is BEAUTIFUL. they use a needle and thread to create designs on cardpaper. You draw a design on cardpaper, then punch holes all along with a pin so you have a perforated design. The thread is knotted at one end and you just "sew" through to create designs that come from one end of the design to the other. You can also use different colors so the threads crisscross - it's a lot of fun to create a beautiful design. Since you can feel the holes, it's easier to draw the needle through. With larger holes there's also plastic needles so you won't poke yourself.
3. If that is not enough there are also the pattern-stitching and embroidery or cross-stitch kits which are lovely. A simple design can be traced on cloth and the stitched over - even fusible web and a cool iron can be used to adhere fabrics.
4. take items around the house that are going to be thrown away and try to think of ideas of what to do with them. For example, you can use old wrapping paper to cover boxes to make ready-to-use gift boxes or bags, or make paper picture frames or cover toilet paper rolls to use as pencil holders.