There are several good and recommended vendors of screen protectors for the BlackBerry. These have been mentioned over and over in the threads at BlackBerryForums.com
WRP-100 S-type Platinum Rhodium Thermocouple 150mm Temperature Sensor Probe Head
$19.43
619154 Thermocouple For Both 2 Way and 3 Way Model Norcold N300 & N300.3 Series
$29.99
Vtg Gauge Lewis Engineering Thermocouple Indicator Aircraft Naugatuck CN Parts
$105.00
1946 Inconel Thermocouple Protection Tubes Ad - Solve 4 Problems
$16.99
WESTERN ELECTRIC 22AN VACUUM THERMOCOUPLE
$19.99
619154 Thermocouple For Both 2 Way and 3 Way Model Norcold N300 & N300.3 Series
$29.99
WESTERN ELECTRIC 20H VACUUM THERMOCOUPLE
$31.99
Vintage HONEYWELL Lucite PAPERWEIGHT - with gas hot water tank thermocouple HVAC
$19.85
Vtg THERMOCOUPLE THERMOMETERS ADVERTISING pin button pinback **ee5
$30.00
1946 Inconel Thermocouple Protection Tubes Ad
$16.99