MFM2: The Magic Flute Mallets #2: 1/2" Brass Balls on Dowel Shafts (Perfect for Act II #20 of Mozart's Magic Flute and, believe it or not, pp (soft) piccolo wood blocks.)
M3R: 5/8" Brass Balls on Rattan Shafts (Great for Orchestral Glockenspiel - excellent fundamental tone when a big, bright, brilliant sound is desired.)
M4: 3/4" Brass Balls on Dowel Shafts (Great for Cage/Harrison brake drum percussion ensemble parts - and why not give these a try for the opening of Pines of Rome or Russian Easter Overture.)
M6: 1" Brass Balls on Dowel Shafts (Great for The Planets - Chimes with metal beaters - You won't believe it, but tremendous for back-stage chimes, deep fundamental with clean fast speaking articulation at medium to soft dynamics: successfully used at the Santa Fe Opera in numerous circumstances.)