Ran across this video on the $1.00 Walmart Buzz Baits and how to modify them. Went to Walmart, bought 4 and just finished modifying them. Now I believe they are compatible to the $4-5 baits in the stores. My cost to modify was zero, as I already had the plastic beads.

Hope you find it useful.

http://www.youtube.com/watch?v=yqjLP7PxSFU