I made this small very lightweight table out of an aluminium wardrobe vent and four titanium tent stakes. With a combined weight of 200g, I think the extra weight to your pack is worth it considering how handy it is for keeping pans etc sturdy on long grass and on uneven ground. It can be used outside, in a vestibule or on the tent floor when laid flat. I purchased the wardrobe vent from Ebay.

Required:
1 @ 300mm x 150mm aluminium wardrobe vent
4 @ 150mm Easton Nano tent pegs
4 @ M4 X 16mm stainless steel socket cap bolts
4 @ M4 stainless steel nylon lock nuts
1 @ 400mm x 20mm Velcro strap