Amaco Glazes and Velvets underglazes. 

The Potter's Choice glaze series was designed with the potter in mind! These stunning glazes add fluid colors and effects to smooth or textured ware, with optimal results at Cone 5/6.
Celadon  Like the beautiful ancient glazes they are modeled after, the AMACO Celadon glazes are glossy, transparent, and pool beautifully to add vivid accents to textured and carved surfaces. 
(SH) Shino  Influenced by the humble earthiness of tea ceremony bowls
Satin Mattes break slightly over edges and texture and boast a soft satin feel. 

Cosmos Crystalline Glazes from Amaco! New and exciting!

Velvet Underglaze Saturated color, dependability, and versatility make Velvets popular. Velvets fire true-to-color as a Cone 05/06 underglaze or fired to Cone 6.