Magnetize-It! High Standard Yield Gray Water-based Magnetic Paint (1-quart) in the Craft Paint department at Lowes.com
Is Aluminum Magnetic? The Lenz Effect - YouTube
Amazon.com: watchget 58mm Magnetic Espresso Dosing Funnel, Coffee Dosing Ring with 9 Magnetized Steel 14mm Height Compatible with 58mm Portafilters, Aluminum Black : Home & Kitchen
Magnetize-It! Magnetic Paint & Primer (Water Based) - Premium Yield "X – VersaCheck
Random Happenstance: Wait, how do you magnetize aluminum? Stupid useless Google...