[Meguumin]

Namco still has an old page up for their Klonoa and Moo papercraft model sheets! You can find all the PDF download links here: http://bandainamcoent.co.jp/cs/list/kloweb/papcra.html
Example images:

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Along with these, there's another page on the site that gives out a PDF download link for the Klonoa Christmas/Holiday card: http://bandainamcoent.co.jp/cs/list/kloweb/card.html
Full version:

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Finally, the site also offers some more well known wallpapers in various sizes: http://bandainamcoent.co.jp/cs/list/kloweb/download.html
800 x 600 versions:

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There is one more page, but all it displays is a now-defunct Klonoa Heroes commercial showing.

[Voka~Daemyn]

Ah thank you for posting these. I have not seen these in a long time nor really knew where they were until now.

[Fennekin]

Thank you, I've seen these rarely around the Internet and now I can make one. 
Just in case the sites do get taken down at some point, I'm going to save these with archive.org.
Thanks again. 

[Meguumin]

Ah thank you for posting these. I have not seen these in a long time nor really knew where they were until now.

Thank you, I've seen these rarely around the Internet and now I can make one. 
Just in case the sites do get taken down at some point, I'm going to save these with archive.org.
Thanks again. 

No problem guys~ Happy to see that this has helped some people