I can supply spare parts for the old style E86 Quick Shake:  the blender insert, the domed seal, and the small top cap. The complete product is no longer available in this old style, but I do have the upgraded version, the EZ Shaker 600ml or 350ml.  I also have the Mini Quick Shake.

If you have a classic old Tupperware Shaker for your Yorkshire pudding, and you lose a part, you can order replacements here.

Please note that orders for seals and other spare parts often take longer than normal orders, but most are dispatched within 2 weeks.