Actually some people kiss their kippa. But I think that most (at least I dont) dont kiss it, and their is no problem even if one plays frisbie with it (I remember doing that in high school). A mezuza or a Torah book is completly different- they are in themselves Holy. A kippa is basically a way to cover one's head. It is no different then a cap, a turban or even a napkin as long as it is on your head. Also their is no problem in throwing a torn or dirty (for whatever reason) kippa that you dont need anymore, one does not have to bury it, as would be the case with a damaged mezuza for example.
What is a mezuza ?
Shalom,
Well, the mezuzzah is a container for a piece of parchment which has scripture written on it. This Mezzuzah box is affixed to the doorpost of the doors in the house. I myself am not fully complying with the mitzvah because I only have a mezzuzah on the front door.
The reason we do this is because it is written in Torah, and we recite it at least 2 times a day in the Shema prayer, that we are to write it {Torah} on the doorposts of the house. I will quote the Torah below. The scripture which is written on the parchment is the actual portion which deals with the commands to love Hashem. The mezzuzah is believed to provide protection from the Ayin Hara and bring Shalom Bayis {Peace in the Home}.
The Torah portion {which we read only 2 weeks ago} is:
PARSHA EIKEV Devarim 11:13-11:21
13. And it will be, if you hearken to My commandments that I command you this day to love the L-rd, your G-d, and to serve Him with all your heart and with all your soul, 14. I will give the rain of your land at its time, the early rain and the latter rain, and you will gather in your grain, your wine, and your oil. 15. And I will give grass in your field for your livestock, and you will eat and be sated. 16. Beware, lest your heart be misled, and you turn away and worship strange gods and prostrate yourselves before them. 17. And the wrath of the L-rd will be kindled against you, and He will close off the heavens, and there will be no rain, and the ground will not give its produce, and you will perish quickly from upon the good land that the L-rd gives you. 18. And you shall set these words of Mine upon your heart and upon your soul, and bind them for a sign upon your hand and they shall be for ornaments between your eyes. 19. And you shall teach them to your sons to speak with them, when you sit in your house and when you walk on the way and when you lie down and when you rise. 20. And you shall inscribe them upon the doorposts of your house and upon your gates, 21. in order that your days may increase and the days of your children, on the land which the L-rd swore to your forefathers to give them, as the days of heaven above the earth.
I bolded the interesting parts regarding this discussion. You will notice that the command to bind them on our hand and as ornaments between our eyes. This is the mitzvah of Tefillin which requires that we bind 2 boxes with this same scripture onto our arms and on our head. I do Tefillin when I can and need to do it more.
The Shema prayer also has mention of the mitzvah of Tzit-Tzits.This mitzvah is to remind us not to be led astray by the heart {intellectual rebellion} or the eyes {lust}.
37 And the LORD spoke unto Moses, saying: 38 'Speak unto the children of Israel, and bid them that they make them throughout their generations fringes in the corners of their garments, and that they put with the fringe of each corner a thread of blue 39 And it shall be unto you for a fringe, that ye may look upon it, and remember all the commandments of the LORD, and do them; and that ye go not about after your own heart and your own eyes, after which ye use to go astray; 40 that ye may remember and do all My commandments, and be holy unto your God. 41 I am the LORD your God, who brought you out of the land of Egypt, to be your God: I am the LORD your God.'
This is what Mezzuzah is...
muman613