Homebase are currently clearing out some of their BBQ stock including these 45cm long Chrome Meat Skewers at 73p for 4. These usually cost around £3-£4.
There are also many other items listed in the first post. Stock can vary, but all the stores near me have most of the items.
Although it's unlikely we'll have anymore BBQ weather this year, it's definitely worth picking up some of the bits for next year.