Bombillas. Many people prefer the convenience of an openable bombilla; these are one of the finer openables on the market. They are constructed of solid brass with a heavy German silver (known as Alpaca in South America) plating and a well-machined openable end. The stems may be cleaned with a bombilla brush available on our 'accessories' page. Most of these are classical in design and go well with a classic mate; be careful as some of the highly-ornamented ones may tend to tip a mate without a base.