Minions are still hugely popular, and these Children's Fleece Onesies and Hoodies are bargain prices at Argos. There were both selling for £12.99, but now have a 25% reduction making them £8.66 each.
Both the Onesie and the Hoodie come in sizes between 3 and 10 years, and the links below take you to the smallest sizes. You will then need to use the drop-down box next to the size, and you will get redirected to the correct item number.
Both of these items seem to have plenty of stock available for both reserve and collect from stores, and for home delivery which costs £3.95.
At these prices they are worth getting and tucking away for Christmas, and I think the Onesie could easily double up as a fancy dress costume too!