Yarn Works Trolley Needle Thread Controller- | eBay
A Guide to Using Needlepoint Laying Tools - Serendipity Needleworks
Just Stitching, Inc - Tuesday's Tip: The beloved Trolley Needle is useful in so many ways, not just controlling your threads to lay flat and aligned properly. You can use it to
Trolley Needle-Laying Tool | Needlepoint Canvases & Threads | The Needlepointer Store - $11.00