I tried DS with a dummy a few times between around 4 and 16 weeks so he could have a soother but he just was not interested, so I left it at that, happy at least that I didn't have to keep replacing it when asleep and so on...
I have a cupboard full of dozens of bottles and teats that were never really used (breastfed but has some formula in a cup now) and now when he crawls around in the kitchen he is pulling them out, and chewing on the teats - this has been going on for a week or so.
Is it worth re-trying with an actual dummy at this stage or would I be mad to?
At this age I wouldn't bother introducung a dummy, it's unlikely a baby needs to suckle at this age unless it has always had a dummy and sucking becomes habbit.
My ds never had a dummy which I was pleased about in a way but really wished sometimes I could have pacified him in some way, especailly whilst out and about. If my friend's babies got cranky in the pram, they'd give them a dummy, mine spat it out and just cried louder! Never ever wanted it in his mouth for more than a second and even then never ever wanted it to sleep with.
Agree with Ruby, he's probably just teething and likes to chew on things rather than suck. I'd offer a teething ring instead, much easier than weaning him off a dummy in a few months time!
My DD who has just turned 1 was like your DS and point blank refused to take a dummy when she was a few weeks old. A week or so ago a friend came round with her small baby and DD nicked a dummy out of friend's bag and proceeded to walk round with it stuck in her mouth for the rest of the time they were here.
Imo I wouldn't worry about offering him a dummy now, you'll just have to wean him off it later.