Vivismoke cotton hook / pick is a great tool when trying to wick your atties and can be used for a ton of other uses. vivismoke Cotton Hook for E-cig is the perfect eCig attomizer DIY tool. Best choice for your RDA. You can use the flat tip to wire and the hook tip to put cotton inside the coils. Designed with a flat tip on one end and angled point on the other, the Cotton Hook by Youde serves a dual purpose. The flat end assits the user wrap their coils while the other end helps stuff cotton into your atomizers with precision.