If you're on a budget, there's a CelticBird 13 piece telescope accessory kit for 1.25-inch eyepieces – but we'd rather have the guarantee of the Celestron brand.

Celestron designed its AstroMaster Accessory Kit for use with any telescope that accepts 1¼” accessories. The kit contains 15mm and 6mm eyepieces, a 2x Power Lens, planetary filters, a Moon ...