This Magic Science Kit available for $12.99 from BSA National could provide some fun “Abracadabra” den meeting (or Webelos Scientist) activities. It has a number of magic tricks that teach facts about science including magnetism, electricity, and friction.
KISMIF.org is not being updated (since mid-2010). I am keeping the site up though in case some of the information is helpful. Thank you for all your efforts in putting on a great Cub Scouting program. --Mike Newman 10-09-2011