The plants you are wanting to use will not attach to the wood, you'd have to physically attach them and continuously trim and re-attach as needed.
A better alternative woul dbe to use an epiphyte, such as Anubias barteri var. nana 'Petite' and attach it. It will eventually self-attach and the leaves stay small as well. Fissidens fontanus may also give you the look you want, though I admit it is not ivy-like...but it does look nice on driftwood.
A better alternative woul dbe to use an epiphyte, such as Anubias barteri var. nana 'Petite' and attach it. It will eventually self-attach and the leaves stay small as well. Fissidens fontanus may also give you the look you want, though I admit it is not ivy-like...but it does look nice on driftwood.