Homeowners planning to fit a new kitchen sink as part of new home improvement projects may opt for recycled materials.Linda Barker says eco-friendly designs are becoming more popular, with existing household items being re-crafted.Speaking at the Ideal Home Show, the interior designer said The strongest message is the eco message.The recycling trend is really strong, [with] more and more people going to charity shops, car boot sales, auctions, that kind of thing.An alternative to using second-hand fixtures could be to invest in kitchen sinks and other fixtures made from recycled materials.Clay farmhouse kitchen sinks can be recycled, and homeowners who install-low flow kitchen taps could reduce their water consumption.In addition, flooring made from bamboo or cork can boost the energy efficiency of a home.Using energy-efficient appliances and eco-friendly lighting fixtures, such as LED spotlights, could also help homeowners to save on energy bills.St Louis Today says green kitchen designs are becoming more popular.