Brass is a little harder than some other commonly-stamped metals, and the Simple Strike Jig is a great help for making good solid impressions using ImpressArt's 6mm stamps. However, you may need an extra scrap or 2 of this blank's thickness (24ga) to help level the jig's base over the spot you want to stamp.
Optional: Use a center punch and small circle stamp to stamp a "landing spot" between them.
Use a ball pein hammer to texture all edges of the blank. Check with your finger to make sure no sharp spots are left. Lightly texture the entire blank to help mask scratches (both current and future).
Add Stamp Enamel to stamped portion (follow instructions on container). Wait a few minutes to make sure all traces of Stamp Enamel are dry, then if desired, lightly sand entire blank with microfine sanding sponge. Use circular motion when sanding.
If the blank became curved while texturing, use a nylon or rawhide hammer to flatten blank.
Glue or soft solder a tie tack onto back. Tie tacks are great as scatter pins -- you can wear them anywhere: on a jacket, collar, etc. Be sure to center it nicely so the pin doesn't turn/tilt excessively when worn.
Yikes! I can't find our soft soldering instructions (except this, which is for soldering glass pendants). Soft soldering an item like this is even easier than soldering glass pendants, and more secure than gluing. Soft soldering supplies listed below (and linked above).
1 each #44-720-53 24ga Brass Stamping Blank, United States, 22x37mm
1 72-pack #38-748-1 White Plated Tie Tack, 8mm, 4mm Pad
1 72-pack #38-878-1 White Plated Clutch, Pinch Type for Tie Tack
1 each #86-430-11-001 ImpressArt Stamp Enamel - Black