Just a quick tip for newbies to BLW. Although finger shaped and wedges are the 'norm' it's pretty handy to cut things into crescent moons and circles with holes in, these shapes give LO a place to grip more easily, espcially slippery fruit which tbh an adult would struggle with. For example rather than wedges the length of an avocado cut in half moons width ways so each piece (well most of them) have a semi circle cut out where the stone was. This is a less slippery shape. Same with cored apple, do moons or rounds, etc.
With things like nectarine I used to prod/squish with my finger into a wedge, basically just mis-shaping the wedge (not mushing the whole piece of fruit) which again gives an area for LO to grip.
I tried fruit rolled in rice cereal thing once or twice (I'd read it as a tip and my mum had bought baby rice which I had no intention of ever using), I found the rice powder just went to mush on the outside of the fruit straight away so wasn't really helpful, but I think someone else had great success with wheatgerm?