Best4Garden No-Dig Recycled Lawn Edging Economy - Green 60mm - Easy installation with pegs supplied - Straight Shape, also can be shaped to any curves - Safe and flexible plastic edging - Creates a crisp defined separation - Can be used to edge turf, flower beds, brick paths, trees, Gravel, Bricks, Slate or any aggregates driveways and pathways - Available in range of packs sizes. (1, No extra nails) Best4garden http://www.amazon.co.uk/dp/B0119NLCFI/ref=cm_sw_r_pi_dp_wC5kwb17HC85K
Mini Oasis If space is limited, a small fountain, bubbling millstone or half-barrel or trough filled with water and aquatic plants can be a good option. Place your feature by a seat or close to the house where it will be visible from the window. When planting a miniature pool, take care to avoid vigorous plants and rely on small, compact plants like pygmy waterlilies.
Small Victorian Greenhouse I made completely from reclaimed materials. I used an old bunk bed, a broke chair. Old windows, plastic garden edging, old hindges, and an odd metal thing for a whirlygig. $150