UofMUSCLE.com – M.U.S.C.L.E. Figures from Mattel
Economics
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General guidelines regarding the value of M.U.S.C.L.E. collectibles
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Tracking the sale of Satan Cross on eBay and providing detailed results
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What is a M.U.S.C.L.E. Figure?
M.U.S.C.L.E. Figure Guide
The University of M.U.S.C.L.E. Figure Guide features a complete visual archive of every poster figure, including classifications. 
Breaking News- Top Ten Thursday #6 April 29, 2021
- M.U.S.C.L.E. Figure #49 April 28, 2021
- Monday Morning M.U.S.C.L.E. Musings #147 April 26, 2021
- Stir Up Saturday – Timely April 24, 2021
- Epilogue – Week of April 18th April 23, 2021