I like cute designs for some stuffs :D One of my favourite design for Cross Stich is "SODA" http://www.sodastitch.com/ because their design always adorable >o< super cute and it's very easy to follow especially for beginner, very colourful and cheerful good for children too ^^
So I choose one of their design and bought a mug that specially made for cross stitch or other craft purpose so that you can put your stitch or any other stuffs to decorate the mug ^^
Check : /https://www.instagram.com/_delalluvia_/
What you need to make this
1. Mug
2. Fabric .. can use for bookmark or use as towel applicate
example : http://www.creativepoppypatterns.com/faby-reilly-designs-high-seas-band-nautical-decor-cross-stitch-xml-260-2739.html
*I like faby's design ^^ especially with blue colours ~
3. Theads
4. Start stitching ~ hehehe
Good Luck ~