Best I've found, available from Grainger:
Felt, F1, 1/16" Thick, 1" x 12"
• Felt Strip
• Wool Felt
• Backing Type Adhesive
• Thickness 1/16 In
• Width 1 In
• F1 Grade
• Off White Color
• Density 1 Lbs/Sq Yd
• Max Temp 200 F
• Vibration Absorption High
• Abrasion Resistance Excellent
• Durometer 30 to 40 Shore A
• Tensile Strength 500 PSI
• Hardness Extra Firm
After I cut to desired shape, I gently stroke with a lighter; just enough to burn off loose hairs. Then, peel off adhesive strip and firmly apply. The brown toasted hairs eventually wear off and you're left with a clean high performing rest/plate.
I like the fuzzy side of velcro. Get it at Wal-Mart
Industrial grade velcro is my choice.
Hard to find, but seal skin is tough to beat.
Felt from hobby lobby. $1.oo for a big piece.
X2 JamesV said.
Wool fleece cut from a buffing pad. Trim down to about 1/4 inch. Wears forever, never burns......