Newbie here.....I have a customer asking about a replacement plunger for the older polka-dot style Quick Stir Pitcher (1 gal). This is the photo she sent me. I feel sure the new style replacement plunger won't work, but do we offer the older style replacement parts for various items? I don't see them on the website, but I didn't know if HO had things just consultants could find. Thanks in advance for any help!