Here's a game I used to play when I was a kid.  It's a little like TextTwist.  I'll provide a word and you form words from its letters.  Of course, you don't need to use all the letters but you have to time yourself.  I recommend from ten to fifteen minutes.  Merely adding an 's' is not counted unless it's an entirely different word and not just a plural form or a certain tense.  There are no winners here.  You only have the fun of playing the game.  Here's an example on how to play this one:

justice

just, cut, ice, suit, jut, jet, set, site, tie, cite, sit, sect, set

(You probably get it now.)

Here's the first word:

ordinary

(It's not for everyone but I hope you enjoy it. )

asa man sunod ana nga word?

A minute and a half, that's impressive!    There's also din, ray, airy, day, arid, rind, road, roar, oar, dray, don, nod.  Anyway, here are my words for promiscuous. 

cusp, cup, crop, sup, miss, prom, sour, romp, puss, piss, sip, rip, prim, scour, pour, moor, poor, cop, corps, curious, our, mop, scum, rum, rim (3 min. 42 sec.)

Next word: regularity

irritated

tire, rite, dear, aired, tear, tier, rate, date, trite, dirt, dare, tread, tired, tart, rat, art, dart, rid, ride, dire, raid, trade, tar, teat, treat, tide, tried (4 mins. and 23 secs.) (That was hard one.)

conservatory