Aldi - 2 Person Hiking Tent - $39.99 / Stainless Steel Drinks Bottle Set - $9.99
Not sure if the tent would really do 2 people...I learnt the hard way and bought a 2 person tent last year for a full weeks trip and it really wasn't enough room.
Think this looks good for one or two nights for the price - you'd probably end up throwing it in the bin after anyway.
Aldi also have lightweight hooded sleeping bags for $14.99
And the 1L stainless steel drink bottles (comes with with 5cm carabiner and microfibre sports towel) look great for $9.99!
There's also hiking boots and rucksacks etc. See catalogue below.