Fun and useful online tartan maker. Select colours, widths, and orientation to make repeatable (aka tiling) tartan (aka plaid) patterns.
SneakPeakIt: Printable Wireframes
Source: http://sneakpeekit.com/
Various Device Mockups
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Proposify: Easy Proposal Creation
CreateBrief.com: Super Simple Web-based Creative Briefs
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Tartan (aka Plaid) Maker
Pasteboard: Quick Image Sharing
"Pasteboard is a quick and simple image sharing web app driven and developed by me, Joel Besada. Images uploaded to Pasteboard are publicly available but not broadcasted, meaning it is up to you to decide who you share the images with."