Science Notebooking - I like how she has them do their title pages for each unit. :) She also has them glue the main learning objectives (or we could do essential questions) on the left hand side then their colorful title page on the right.
DIY magnetic silly putty - I am not sure what all goes into it or if it toxic, etc. but the idea of it is REALLY neat. I am going to have to check into that during out magnet unit in science this year!