Nothing says summer like children blowing soap bubbles. And nothing will frustrate a toddler faster than trying to blow bubbles with thin soap and a flimsy wand. Sons and Daughters sells the German brand of bubbles Pustefix, a thick liquid soap that yields big shiny bubbles filled with rainbows. The wand is attached to the top, so no more slippery fingers to add to the frustration. And that colorful tube and yellow bear are adorable.