If you have an old picnic table that's ugly and scarred, or if you're at a public picnic site and want to cover the table tops with something cheerful and easy to clean, consider this: oilcloth! A few yards will instantly add a bright and celebratory vibe to your gathering!
Oilcloth used to be just that: a heavy duty cotton or linen cloth that was soaked in linseed oil until it became saturated. The cloth was then hung to dry to produce an almost waterproof fabric. Today, most of the oilcloth available is coated in vinyl although it still retains the name oilcloth.
Oilcloth has many virtues. Besides coming in a wide variety of cheerful colors and patterns, it easily wipes clean with a damp cloth and can be used over and over again. It's also very portable. Just roll it up and bring it to the park or beach and clip it to the surface you wish to cover. Of course, you can buy a finished oilcloth tablecloth or make one yourself. (Here's a tutorial for the one pictured above.)
You do need to be careful not to set very hot items directly on an oilcloth covered surface, though, as the vinyl coating will melt. Paint thinner, nail polish remover and other solvents will also destroy the cloth. Be sure to wipe up spills right away to prevent staining.
Oilcloth can be purchased by the yard at many fabric stores or online. It is available in traditional Mexican patterns, classic checks and plaids and dozens of other themed patterns. It is also available in solid colors and the recently popular chalkboard version. Most oilcloth is also backed with a soft flannel to protect the surface it is covering.
One drawback to oilcloth is that while it is reusable, the vinyl coating keeps it from being eco-friendly. In fact, it is not recommended to use oilcloth for products that can easily be chewed on by babies (such as bibs.) Some people have been experimenting with creating a DYI oilcloth using the old-fashioned cloth and linseed oil combination. Sadly, I wasn't able to find any commercially available non-vinyl oilcloth although I did read that it was available in very drab colors for authentic war reenactment purposes. Not very cheap and cheerful, that.
Buy It!
• Oilcloth on Etsy
• DIY Oilcloth
• Oilcloth By the Yard
• What is REAL Oilcloth? (includes a DIY tutorial)
Related: Fun Entertaining: Chalkboard Tablecloths
(Image: Living with Punks)
Martha Concrete Lam...

YES. I want oilcloth that is real oilcloth and not covered in vinyl!
Oilcloth is actually covered in PVC, which is not something young children should be around.
The really high end plastic-coated fabrics like Marimekko are not PVC and are made of food-safe plastics but are very expensive. Much cheaper to use cloth.
I was on a quest for oilcloth for my kitchen a few years back and found that some manufacturers are also using the term "laminated cotton" to describe the plastic and/or PVC covered fabric. That search term may help you locate a greater variety of textiles.
I was shopping for oilcloth online until I saw that most varieties contain lead and shouldn't be around pregnant women or children!
Rosenberg has very pretty patterns and is free of PVC. Its organic cotton with an Acrylic coating. http://www.rosenbergcph.dk/about.html
Yeah, I'm really bummed out by the whole toxic angle. It wouldn't be as thick, and wouldn't be wipeable, but I wonder if one of those washable (fabric) shower curtains might be practical as something that's fairly waterproof.