I bought a potty for S a while ago. At the time I hadn't intended to buy him one but he was interested in it and even began to sit on it while at the store. So I bought it and he's used it in a variety of ways...as a lounger in the livingroom, toy storage, step stool (however it's not the kind that is meant to be converted into a step stool!)... The potty was starting to look a bit unsightly in the livingroom so we moved it to S's bathroom upstairs a while back and he wasn't showing much interest in using it.
Then this weekend we thought we'd try to get him to relieve himself on the potty. I guess it helps that he sees me use the toilet and is keen on imitating. Lo and behold, it worked. Now we offer the potty to him each time he has a diaper change and when he wants to go, he can go.
I know it's early to potty train but if he's keen and willing, I'll give him the opportunity to use it. No pressure. Hopefully the novelty of it won't wear off!