I received this coupon from Home Science Tools. It says it is for subscribers only, but you could subscribe to their e-mail list and then use it if it won’t let you use it.
School might be out, but now is the time to save! Take 10% off your order on cool, hands-on science products you can use this summer and fall! Order by June 17th to enjoy these savings. Just use code JUNEPP11 when you check out!