Busia - Grandma Mug from Boleslawiec - Blue Eye with Flowers. 350 ml - 12 oz. Made in Boleslawiec - WIZA, Poland. This Mug is a beautiful piece of Polish Pottery with 'Busia' written across the front in carefully detail. This lovely mug will make a great addition to any Busia's morning routine. Grandma will be able to enjoy her mornings so much more when her favorite warm beverage is served up in this intricately detailed Polish mug.