Use the Medium Flat Magnetic Flight Stands for the Spyder.
[Buy Product=2x-medium-flat-magnetic-flight-stands,Variant=All]
For a peel-and-stick option that works with clear flying bases, use the Peel & Stick Inner Base Magnets — no drilling required.
[Buy Product=flexible-self-adhesive-magnets,variant=51483453948194]
If you need a replacement base, you can use these 60mm bases.
[Buy Product=bases-premagnetized-warhammer,variant=30427499626580]