I know these styles are also quite bright and eye-catching but they seem to be styles that are also reflected in current fashion trends today. For instance the colourful trainers (sneakers) you can find in many shoe shops, it's a big trend in Japan currently (according to this weeks episode of Tokyo Fashion Express). I recently purchased some colourful trainers from Swimmer, a kind of novelty Japanese shop that sells cute things such as home ware and clothing.
Pastry and even customise your own colours at Nike. I've seen lolitas co-ordinate these sneakers with jumperskirts and skirts, mainly sweet lolita prints such as Milky Planet and Milky Berry. It seems to work really well especially with OTT sweet lolita and I guess they are more comfortable to wear than tea-parties ;-)
I think the sneakers also works well with Otome style because it's quite casual. I purchased the strawberry pair to wear with my Emily Temple Cute Tea Party jumperskirt and I think the colours work really well with the print. I also co-ordinated the jsk with a kitsch cherry print blouse, I don't know if this is too much print overall :S I'd appreciate any ideas ;-)
|Headbow: Angelic Pretty|
Blouse: Henry Holland @ Debenhams
Jumperskirt: Emily Temple Cute
Also I want to mention Fairy-kei, alot of elements have been incorporated into lolita recently, such as the new Angelic Pretty print - Dream Sky. A lot of lolitas have mixed feelings about this combination, personally I find it quite refreshing. It's very colourful and similar to OTT sweet but allows room for more variation. I had a look at a fairy-kei store called Nile Perch, they have some nice cutsew style tops that would work well with sweet lolita. Also pretty baby doll dresses that would go well with colourful sneakers.