Peg board feet for ikea skadis (Farnley LS12)

Ikea have none of the feet for the Skadis pegboard which is in the second photo. The first photo shows exactly what the IKEA ones look like, they have a clamp to attach the board to a desk table. The second photo shows them made by somebody else and they’re just sit on the table but even if I order these, they won’t come in time because I need them for next Sunday. I’d be extremely grateful if anyone has some.