The Sign Language Word Reference Guide lists words found in sign language dictionary resources online, along with links to the dictionaries that have the sign. Each dictionary presents signs differently -- some have video, others have graphic illustrations or animated graphics.
In addition, About.com:Deafness has several mini sign language guides for signs for things such as animals, body parts, colors, numbers, school, and more. Plus, there are mini sign language guides for holidays such as Christmas, Halloween, Thanksgiving, and Valentine's Day.
The signs for the words below can be found in the sign language dictionaries mentioned in Sign Language Dictionaries Online:
Pace - Pal Pale - Pantyhose Papa - Parch Pardon - Part Part From - Pastor Pat - Pea Peace - Pelican Pen - Pension Pentagon - Perfume Perhaps - Persevere Persist - Petty Pharmacy - Photographer Phrase - Pig Pile - Pinnochio Pinpoint - Place Plaid - Please Pleasure - Pocket Pod - Pontiff Pony - Portugal Position - Pound Pour - Precise Predict - President Press - Prince Princess - Probable Probably - Progress Prohibit - Propeller Proper - Protestant Proud - Pumice Pump - Purse Pursue - Pyramid