WARNING AND DISCLAIMER: If you are underage, then consult with your parents or guardians before attempting any of this. Making the items described below can result in injury or death to you or people in your vicinity. Some things mentioned here may be illegal to make in your city, county, state, or country so check the laws that apply to you before you attempt anything described here.
Blue Lift
This is an experiment in using a lift that doesn't produce the flame front that BP does. The lift in this case is Shimizu Blue Star #2 from page 216 of Fireworks the Art, Science and Technique. This is a chlorate mixture so proper precautions should be taken when making it and when using it. While it hasn't been tested with heavy loads, it might act like H3 which detonates when the loads are fairly big. For small mortars (3" or 4") the blue lift might be an interesting solution.
The blue star mix was wetted with water and riced through a 12 mesh screen. About 75 percent more Blue Lift was used than BP - Blue Lift burns slower than 2FA.