Monisa

Вот так: jsfiddle.net/IonDen/k59m0qyv

Большой выбор иконок, которые можно скачать бесплатно и вставить для примера в свой макет, а для релиза, когда идея ясна уже отрисовать свои.
The Noun Project

В моей копилке сайтов есть следующие ссылки:
iconmonstr.com
www.iconarchive.com - free icon stock search
www.iconfinder.com - free icon stock search

designmoo.com - stock web dribble ui free
freepsdfiles.net
365psd.com/
365psd.ru/
www.freebievectors.com
www.flaticon.com - free icon
www.freepik.com
openclipart.org
www.freedigitalphotos.net
www.everystockphoto.com
www.freephotosbank.com
www.studio25.ro/EN
www.photogen.com
www.freejpg.com.ar
www.turbophoto.com
www.kavewall.com
www.morguefile.com
www.adigitaldreamer.com
www.imagebase.net
www.photorack.net
qvectors.net
www.vecteezy.com
https://www.vectoropenstock.com/
www.vectormadness.com
www.vectorilla.com
vector4free.com
www.graphicsfuel.com
www.greatvectors.com
wowvectors.com
www.vectorportal.com
www.free-vectors.com
www.allvectors.com
www.logoinstant.com - logo
shaboopie.com - logo
imageafter.com - текстуры
mayang.com/textures — с дневным лимитом
free-textures.got3d.com — частично бесплатный
newtek.com/freestuff — требуется регистрация

Free Photo
search.creativecommons.org — поисковик бесплатных фоток
https://www.flickr.com/search/?q=paris&l=cc&ct
https://500px.com/creativecommons
photopin.com

Little Visuals littlevisuals.co
Unsplash unsplash.com
Death to the Stock Photo join.deathtothestockphoto.com
New Old Stock nos.twnsnd.co
Superfamous (requires attribution) superfamous.com
Picjumbo picjumbo.com
The Pattern Library thepatternlibrary.com
Gratisography www.gratisography.com
Getrefe getrefe.tumblr.com
IM Free (requires attribution) imcreator.com/free
Jay Mantri jaymantri.com
Public Domain Archive publicdomainarchive.com
Magdeleine magdeleine.co
Foodiesfeed foodiesfeed.com
Picography picography.co
Raumrot www.raumrot.com/10
ISO Republic isorepublic.com
www.gratisography.com
stockphotos.io
pickupimage.com — в основном, природа и города.
www.rgbstock.com
pixabay.com - free photo
unsplash.com Unsplash
www.picjumbo.com Picjumbo
www.gratisography.com Gratisography
www.superfamous.com Superfamous
www.littlevisuals.co Little Visuals
www.splitshire.com Split Shire
www.pixabay.com Pixabay
www.imcreator.com/free I’m Free
www.nos.twnsnd.co New Old Stock
wefunction.com/category/free-photos Function Free Photos
pjrvs.com/a/photos Paul Jarvis Free Photos ]
www.sxc.hu - hi-res free clipart photo
www.photl.com - hi-res free clipart photo
getty.edu - photo history
www.firestock.ru
www.photogen.com
www.everystockphoto.com
www.stockvault.net
morguefile.com
freerangestock.com
www.dreamstime.com/free-photos
picjumbo.com
getrefe.tumblr.com
pixabay.com
join.deathtothestockphoto.com
littlevisuals.co
superfamous.com
www.coolwebmasters.com/engine/go.php?url=aHR0c..
compfight.com
www.coolwebmasters.com/engine/go.php?url=aHR0c..
www.imcreator.com/free
nos.twnsnd.co
photopin.com
wefunction.com/category/free-photos
pjrvs.com/a/photos
allthefreestock.com — все бесплаьные стоки
www.pexels.com
ru.photl.com
https://stocksnap.io/ — CC