Microburst is totally right.
What I normally do in the sim when I think holding is a bit too demanding according to the current workload, is asking for:
heading 090 for 15 NM and a left/right turn onto a heading of 270 for another 15 NM... you can do this with any heading... it is a kind of hold, but of course you don't need to "navigate" that much and you can still use a bit of extra brain resources in monitoring your PNF, etc.
:-)