I have two little boys. My eldest is almost 3 and my youngest has just turned one. We'd like to spend more time in the garden, but the playhouse, two ride-ons and balls that we have in the garden just don't keep them entertained for long enough - maybe half an hour? So we'd like to get them more toys for the garden, but can't decide what. We've been thinking about sand tables or a swing & slide set (there are two parks in our village). We're happy to spend a few hundred. What keeps your little ones happy in the garden? What would be worth investing in?