Organic 'Spray & Grow' Mushroom Growing Kits – North Spore
Amazon.com : Back to the Roots Organic Mini Mushroom Grow Kit, Harvest Gourmet Oyster Mushrooms In 10 days, Top Gardening Gift, Holiday Gift, & Unique Gift : Patio, Lawn & Garden
Blue Oyster Mushroom Grow Kit - Grow Mushrooms Canada