Support base for pasting subjects

For my photography hobby and insect collection, I created this base with a sliding stand so that I can align the subject with the pin that will be attached to it. As you can see from the photo, a 6x2 mm magnet is to be glued onto the base, and the vertical cut will allow an entomological pin to attach to the magnet and then slide up to the subject, while where the small base will be placed I glued a sheet of metal that I cut. The small base I created with a slight recess and underneath are attached two magnets that will grip the main base but allow it to slide.