Air-filled balloon designs are an alternative to helium bunches. They last for weeks at room temperature.  They can be created to any theme or colour scheme and lend themselves to personalisation. The prices captioned above give you an idea of price, which vary with the level of embellishment. Because they are air-filled you get more balloons and add-ons for your money and they can work on the floor to fill a gap in a room or on a sideboard to fill the space up to the ceiling.  I have a large vehicle and can deliver air filled balloons in Cobham and locally.