if she does horse riding already,what about a decent riding hat or skull-as the quality makes all the difference,plus they are supposed to be replaced every few years anyway.
or a riding body protector,riding boots,some quality clothing like joules stuff which can be worn at any time...
if there are any big equestrian superstores around like we have over here,coud always change the money into a gift voucher from the shop and put it in a nice horse themed card so she can go and spend it on whatever she wants; horsey style.
there are many equestrian themed computer games,but unfortunately they are crap,the japanese market is the only one that really gives a darn about equestrianism but am not sure if their games woud work on an american console-though they are NTSC as well.
