. Writing a star in your orkut scrap - Write & # 9 7 3 3 before your scrap without spaces in between these characters. And see a cool star icon that comes up in the scrap on submitting.
2. Writing scraps in reverse - Add & # 8 2 3 8 before your scrap without spaces in between these characters. The whole text will get reversed on submitting it. Isn’t It Cool.
3. Make yourself invisible on orkut - In MS Paint, create a smallest image possible and then upload it in internet explorer. It will be unclickable and you are invisible now. Voilla ..!!
4. Adding cool symbols in orkut scrap -
alt + 987 - █, alt + 1 - ☺, alt + 2 - ☻, alt + 3 - ♥,
alt + 4 - ♦, alt + 5 - ♣, alt + 6 - ♠, alt + 7 - •,
alt + 8 - ◘, alt + 9 - ○, alt + 0178 - ², alt + 0489 - é,
alt + 0756 - ô, alt + 0742 - æ, alt + 0719 - Ï,
alt + 0739 - ã, alt + 0729 - Ù
Keep trying different key combinations for more cool symbols.