Micro magnets are VERY expensive, but they're fantastic (neodymium, of course) if you need something this size. I did, so I had to pay the price. Be VERY careful, they can be lost very easily even if you are careful. I had to order a whole set of 50 because I lost one (1) as it flew to the afterlife and was never seen again.
16-Pack Powerful Neodymium Bar Magnets | MIKEDE Rare Earth π§² Metal Magnets with Double-Sided Adhesive | 60 x 10 x 3 mm
35 Review
50Pcs Strong Neodymium Magnets With Hole & Mounting Screws - Heavy Duty Rare Earth Disc Countersunk For Locker, Tool Storage & Crafts
31 Review
MIKEDE 8-Pack Powerful Neodymium Magnets With Double-Sided Adhesive - Ideal For Fridge, Crafts, DIY, Science, Building & Office Projects - Rare Earth Magnets For Strong Grip
39 Review
Pack Of 12 MIKEDE Neodymium Bar Magnets - Strong Rare Earth Metal Magnets With Double-Sided Adhesive - 60 X 10 X 3 Mm Size
41 Review