Thanks to A Beautiful Mess for their easy-and-instant DIY Instagram Wall Decor tutorial, and for making me feel so productive after mine was done... although the result isn't tidy enough. I have a terrible craftmanship (huge bummer!) and horrible measuring skill.
The process was kind of fun and frustrating because I had to print 108 Instagram photos to cover the whole surface. The original tutorial recommends 12x12 canvas so it'll perfectly fit with 9 pieces of 4x4 photos, but I decided to use one of my sister's leftover canvas, which is much bigger in size (43 x 53). And I always ended up becoming a person who keep bothering myself, so my mind told me to make a collage of tiny pieces and I chose 4.3 x 4.3 for the photo size.
And here comes the most unimportant part... my Instagram account had only 37 photos at that time. I could just Photoshop-ed the rest, but me, being silly, filtered 71 pictures with Instagram effects without posting it (I turned the Wi-Fi network off first... it's impossible to suddenly flood the timeline).
As you can see, there are two small empty spaces at the left and right side of the canvas, thanks to my horrible measuring skill. However, if you are a proud and active user of Instagram, you should give a try to make your own Instagram wall decor. To make it less time-consuming, you can follow the right instructions from A Beautiful Mess which requires a small canvas and photos in bigger size than I have. (Hey, if you have made your own, I'd really love to see it!)