We installed pegboard over a plain backsplash, then added hooks to hang utensils and dishware.
Make a template of the backsplash area using a large piece of kraft paper (we used paper bags taped together). Make an exact cut around edges and double-check the measurements.
Use the template to mark your cutting area on the pegboard. Make sure the cut lines are straight and not along the holes in the pegboard.
Use a jigsaw to cut the pegboard. Double-check measurements and make sure the panel fits properly in the backsplash space.
Place the pegboard panel onto the backsplash area. Find the wall studs and use drywall screws to attach the panel along its edges and into a couple of the studs.
Add pegboard hooks.
If you want, place a small piece of wood trim around the edges and nail into place.
When it comes time to remove the backsplash, just take the screws out and fill the holes with joint compound.