Wrapping treats in a towel is a common enrichment idea but for many dogs that quickly becomes too easy – especially if you do a lot of enrichment games and the dogs learn strategies to solve puzzles faster!
A level up could include a large blanket or bedspread – these are our sofa covers for dogs (double bed sized bedspreads) which I rolled up in a random pattern and hid treats in different layers, finished off by tucking it up into a tight ball.
The many random folds mean it takes the dogs longer to maneuver the blanket and LOTS of sniffing. Having said that, these only lasted 5min per dog so I had to do 2 rounds… Still, every little helps!