Are there any uk car insurance companies that will insure a university student for only weekend/holiday use?

My daughter will soon be off to uni, she wants her own car but will only use it when she is home for weekends and holidays, i have heard that some insurance companies will cover her for these days - anyone know who?
Answer
Providing your daughter is over 21 and has held a full uk/eea/eu licence for a minimum of 12 months, this should not be a problem. she can purchase (or good old mum can) insurance cover from between 1 to 28 days.