An alternative to the Dycem pad, the Black, 11' x 14' GRIP non-slip material / anti-slip material Lap Board will keep items in place but isn't sticky.
Chillmate - Cooling Pad, 2 USB Port, Dual Fan, upto 15.6 Laptop –
Grip Lap Board, 11 X 14, Blue
Medline Standard Bedside Service Tray - Medline DYND80438 CS - Betty Mills
Drive Walker Tray
GRIP Solutions, Grip Lap Board, 11 x 14, Black : Home & Kitchen
Mt. CB 13 and CB 14 Expedition - Bikat Adventures
GRIP Lap Board,11X14, Black/ Build My Wheelchair
Grip Lap Board, 11 X 14, Black
Grip-Solutions Online Store South Africa
Longevity Plastic 16 cup set - My Laser Store