If you will be building something which uses small parts produced on your tablesaw, you can let your shop vacuum pick up the pieces for you. It's fast, efficient, and safer than getting your hand close to the blade. Clean out the vac, then wire or clamp the suction hose so that the small pieces are drawn in as you do your cutting. Then, when you are done, simply open up the vac and collect the parts.
Bumper stickers and dealer emblems are usually attached to a car with glue. The best way to loosen glue is heat, so try heating it up with a hair dryer. Use a putty knife, with its blade wrapped in duct tape to work the label up as the glue warms up.