I made these signs.

I designed them in Adobe Illustrator, imported them to RetinaEngrave, cut them out of acrylic sheets using the MLE-40 laser cutter from Full Spectrum Laser, and glued them to a frosted clear acrylic sheet with clear silicon adhesive/sealant.

The acrylic and stainless steel standoffs are from TAP Plastics, and the hardware was bought at the local ACE Hardware (Miner’s in SLO).

Thanks to Eric and John at iFixit who helped.