Grace Akhrem Patterns - Silver Lining is a similar pattern: 20 (5 sts. / inch) finished gauge, for women, and fingering (27-32 sts/4 in) yarn gauge. You make also like Andrea Rangel Knits Patterns - Dinar Slippers, which is another similar pattern: 20 (5 sts. / inch) finished gauge, socks and footwear garment, and for women.
You may enjoy taking a look at the Blue Sky Alpacas Royal Petite Mitini Mitts, Blue Sky Alpaca Royal Petite Windsor Mitts, Blue Sky Alpacas Royal Petite Westminster Hat, and Blue Sky Alpacas Royal Petite Buckingham Hat kits all using Blue Sky Alpacas Hat, Sock, and Mitten Patterns.
Hopefully our suggested yarn options for Windsor Mitts can help you come up with your next exciting new project idea!