Demonstrating the Knit/Woven 8mm binder attachment for the BabyLock Triumph to create drawstrings for skirts, pants or hoodies quickly and easily without turning tiny tubes! Featuring the Allegro Bottoms Pattern by Love Notions:
(Affiliate Link) https://www.lovenotions.com/product/allegro?affiliates=199
The pattern is on sale for $5 Today May 15, 2020 and the on re-release sale for $9 until May 22, 202 that is still 25% off the regular price.
Link to the pattern also in the comments.