Ollieroo via eBay offers its Ollieroo Non-Slip Hangers 50-Pack for $22.79 with free shipping. (GearXS offers a similar 50-pack for a few cents more.) That's tied with our March mention of a pack and $10 under the lowest total price we could find for a 50-pack elsewhere now, outside of the mention below. They feature notched shoulders for garments with straps.

A close price: All-Home via Amazon has a similar 50-pack for $23.87 with free shipping for Prime members.