Got this online:
Cutting down on pellets (dry food) will encourage them to snack on hay (they only need an eggcup size portion per day). Try feeding pellets for breakfast and just provide hay throughout the day. WARNING: Slowly reduce the amount of pellets you give them - if they're not used to eating hay then suddenly taking away their main food source could be dangerous
Try them on various hays (try asking for sample packs so you don't have to buy a big bag each time)
Mix tasty bits in with their hay encouraging them to forage in there, such as grass and herbs
Mix a few hays into one pile
Stuff toilet roll tubes with hay to make fun games for them
Put hay everywhere they go so they can't get away from it!
Rabbits like to eat hay while they're going to the toilet, so put a pile of hay in their litter tray
Grass is also good for rabbits' teeth and tummies so give them grass while you're weaning them onto hay! (Pick from your garden but don't give lawn mowings as it turns mushy and can upset their stomachs)
'Readigrass' is dried grass, good for rabbit teeth and can help wean them onto hay textures (may be high in calcium so only give a small handful per day, try mixing in with hay)
Wave hay in their face and tap it on their mouths - it will annoy them enough to bite it and this eventually turns into them eating it!
Lightly spray pineapple juice on some hay and let it dry, they'll like the sweet taste
Different rabbits like different hays so take notes and once they start eating hay, try ones that have previously been 'dismissed' by them as they may like them now they have a taste for hay!
