These are probably only appropriate prior to the start of BB3, but what about using some of the housemates famous 'catchphrases' (OK, Helen, Paul's & Bubbles anyway!), for example:
1 - Chill Your Boots!
25 - We Like It A Lot!
50 - I Like Blinking I Do!
100 - Jacuzzi-tastic!
250 - Double Cool!
500 - Ding Dong!
750 - Wicked!
1000 - Oh My God!
........... and maybe Admin. could be 'Evil Demons'!!
I'm sure you can do better!
