Funky Pumpkin – Reaction A pumpkin with a little glass chemistry going on inside. Our Reaction Funky Pumpkin brings one of our experimental reaction colour combinations to the classic handblown pumpkin form. Layers of different coloured glass interact during the making process, creating flowing blues, greens and earthy tones that shift, blend and react in ways that can never be completely predicted. The result is a richly patterned surface with something new to discover from every angle. Handblown in our North Wales studio and finished with a clear crystal stalk and delicate curling tendril, no two Reaction Pumpkins can ever be exactly alike. Handblown in North Wales. The nature of the reaction technique means variations in colour and pattern are an integral part of each unique piece.