Yes indeed - a good choice, although you'd need other trailing plants too.

As Spritz said you can, but subject to the type of liner you have, I have found that plants that naturally grow vertical are a good alternative to trailers as these will give width to a basket.

What happens is; the vertical plant hangs down from the lower regions of the basket, and as the plant naturally grows vertical it does a "U" turn and grows upwards,this gives width to the basket.

To give additional depth to a basket alternate natural trailers and vertical plants and you wil get the best of both worlds.

There are some examples here;

http://www.thegardenersalmanac.co.uk/Data/Containers%20-%20Baskets/Baskets.htm