It is very inconvenient to dial the telephone on the unit, which is on a smooth surface. But it is worth it to replace the rubber feet for Velcro (like “thistles”, used on clothes) and attach the rubber glue to the Desk — phone in the set will be dead.
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If you can't make it to Chuck to turn the light bulb and no ladder or chair will help you simple device from a dense paper and two rubber bands.
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For pumping nipple balls often use Bicycle pump with a special needle. But it does not matter if it broke or its just not there at hand: with this work well covered by a normal Bicycle...