Cascade Heritage Yarn is a similar yarn: wool, machine wash, fingering (27-32 sts/4 in), 7-8 sts / inch. You may also like Schoppel Wolle Zauberball Crazy Yarn, which is another similar yarn: wool, machine wash, fingering (27-32 sts/4 in).
What about yarn that have the same look and feel? Find more yarn with a smooth / uniform texture, a low (drapey) twist, and is machine dyed.
Hopefully our suggested project ideas for Crystal Palace Mini Solid Yarn can help you come up with your next exciting new project idea!