New 20 ounce tumblers available now! Forum donation credit with purchase. https://www.wildguzzi.com/Products/products.htm#Tumbler
If you PM Joe W here, I think he has them for sale, or did as I remember.
I used these or something similar on my Jackal.https://www.amazon.com/uxcell-Bearing-Inside-Economy-Lubricating/dp/B074SJ1PRB/ref=pd_sbs_328_16?_encoding=UTF8&pd_rd_i=B074SJ1PRB&pd_rd_r=702d0ccb-060e-11e9-bb30-a57c4b187e24&pd_rd_w=3yqZp&pd_rd_wg=TcYQI&pf_rd_p=7d5d9c3c-5e01-44ac-97fd-261afd40b865&pf_rd_r=S51AKE4Y3R2HP6F1MSNA&refRID=S51AKE4Y3R2HP6F1MSNA&th=1
I use these on Loopframe shift linkages: https://www.mcmaster.com/6275K53