Boot Flask Shooting Pewter. We offer a selection of 3oz (85ml) English Pewter Boot Flasks in various designs. This flask has 2 rifles embossed on the front. Our Boot flasks are very popular, this is particularly useful for those who like shooting. All our Pewter Flasks are presented in a gift box including a silky draw-string bag. The Boot Flask is designed to pop into your welly or boot when out and about. The boot flask has a centre engraving panel so can be engraved with a name, logo or personal message. All our pewter gifts are made in the UK by British craftsmen.