Similar to silver vine and catnip, cats love Tatarian honeysuckle. The wood of this shrub seems to contain some unidentified single chemical compounds that are not found in other cat-attracting plants, making it quite popular among some cats. Have a look at these 3 videos of a cat enjoying some Tatarian honeysuckle wood: 1 (Vlinder), 2 (Harvey) and 3 (Pumpkin).
We do not sell Tatarian honeysuckle wood, but you can buy it here (Canada, but they ship worldwide), here (USA) and here (UK) for your cat. We will not gain anything if you make a purchase; we are just trying to help cats. 

Silver vine stem contains cat-attracting volatiles that elicit responses similar to those seen when cats smell catnip. The responses to these silver vine wood sticks are typically more subtle. Most cats who like the silver vine sticks will rub the stick with their head and lick it. Watch Zappa respond to a silver vine stick here.