DIY Rock Pendants Using a Soldering Iron Tutorial from Stars for Streetlights. There is a really good short video tutorial on how to go through the steps of soldering (not that many and not that hard). There are also links to the materials she has used and they are so much cheaper than I expected.
DIY Happy Rock Felt Door Stop Tutorial from Handmade Charlotte here. Cute and practical gift. Kids learning to embroider could contribute to this DIY.