Ferocactus glaucescens

Pilosocereus glaucescens, also known as a blue torch,  is a beautiful cactus with a blue tint and whispy hair like spines. It originates from Brazil.  plants are 5-8" tall

Ferocactus emoryi is a type of barrel cactus that has attractive brown or red curved spines with white tufts. 

This barrel cactus produces bright white striped blossoms in the summer and spring. It will eventually lean into the direction of sunlight rather than growing perfectly straight up, so keep this lean...

Ferocactus latispinus