Welcome to STAMP! Our twins and multiples playgroup is on every Friday morning (except the last Friday of every month) from 10:00am-12:00pm. STAMP is a great place to meet other mums and dads with twins, triplets and more! With a baby area for little ones and toys and slides for our older ones, everyone is welcome. Twins/multiples under 12 months - £2 per family Twins/multiples over 12 months - £3 per family.